Shadowing Practice: What the actual science says about "brain rot" - Learn English Speaking with Video
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In 2022, a lab in Munich did something that I've been wanting to see.
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They gave 60 people a cognitive test, then sent them away for a 10 -minute break, and then tested them again.
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Now the difference was the break.
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Some people just sat there, some scrolled on Twitter, some watched a normal YouTube video, and some went on TikTok.
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So whose brain changed during that time?
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This is one of the few experiments that I've been able to dig up
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that has actually tested the idea of brain rot.
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But the science is starting to catch up to the fact that short form video feeds are everywhere, and almost all of the commentary says that they're making us dumber.
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I cannot physically bring myself to study.
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I'm addicted too.
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We're all addicted to this.
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Oh no. It's horrible for you.
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Oh, and we're giving kids just the attention span of a walnut.
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This is awkward because we make shorts, and it has introduced us to a bunch of new viewers.
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If brain rot is real, then we might be part of the problem.
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I do have a lot of skepticism whenever there's a claim
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that like some new thing is fundamentally changing the way that humans operate.
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Yeah.
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Apparently Socrates thought that writing was going to ruin our minds.
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And, you know, people worried about novels being addictive and the telegraph and all of that.
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Like on Howtown, we don't just take the conventional wisdom.
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We're not running on vibes over here.
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We're trying to see if there's anything behind the vibes.
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So I went hunting for evidence.
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We've heard about shrinking attention spans since the start of the smartphone era, but how can we measure those?
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And what are the studies saying about the video feeds specifically?
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After 10 minutes of swiping through shorts, do people really think any worse?
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First, I wanted to know what makes this new format different from the hours of television that people watch every day.
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And you can hear it in how the companies talk about their own product.
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See, last year a bunch of private conversations between TikTok employees came to light after 14 U .S states investigated
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and sued the company.
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This is multiple lawsuits coming from individual states' attorney general.
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And the action alleges that TikTok exploits and harms young users.
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The state attorneys had agreed to black out the confidential materials.
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And I found the breadth of these redactions odd.
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That's a local reporter named Sylvia Goodman she discovered that the redactions in the Kentucky complaint had not been done correctly.
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I copy and pasted it all out into a fresh document and I could read all of those redactions.
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I'll be honest, my jaw was on the floor reading some of this.
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The documents showed TikTok employees openly grappling with the potential harm of the bold glamour filter.
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Bold glamour filter.
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This is without the filter.
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They admitted that those screen time reminders
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were a good talking point but not altogether effective one sentence
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that really stood out to me came from an internal document titled Digital Wellbeing.
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TikTok's success can largely be attributed to strong out -of -the -box personalization and automation, which limits user agency.
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We hear a lot about that personalization.
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That's the famous algorithm that decides what to show you based on what you watch
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and what people with similar watch behavior watch.
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But I want to zero in on that last part about how the interface limits user agency.
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They're saying that TikTok wins by making fewer things feel like your decision.
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And I think that's the key to understanding what short -form video feeds might be doing to our minds.
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And since we use that word feed, let's roll with the food analogy.
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The restaurants we know have a menu.
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You browse, you pick something, you eat it.
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Streaming television is that kind of restaurant.
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YouTube is too.
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Or it was.
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Their big innovation is that the menus are personalized based on what you've eaten there in the past.
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Now imagine a restaurant without menus, where you sit down, open your mouth, and a device places a morsel of something onto your tongue.
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You don't get another bite until you eat it or spit it out.
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By measuring your chew time, the restaurant can adjust the lineup of bites to feature more of the flavors that you tend to swallow.
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But they don't just hit you with the same flavor time after time.
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They can also test out some unexpected morsels, because even if it's not your favorite, it's just a bite.
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And there's another one waiting that might be amazing.
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Without a menu, you lose the experience of choosing, but you gain the experience of being surprised over and over and over again.
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Plus, a lot more people can make morsels than can make a whole menu, so this restaurant can recruit way more cooks trying way more tricks to make their morsels tasty.
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This restaurant is TikTok and Reels and YouTube Shorts and all of the other imitators.
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And it is probably the most engaging media interface that I've ever seen, just in terms of sheer entertainment by watch time.
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There's a catch though.
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This sequential feeding system wouldn't work if the dishes were big or complicated.
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It only works with morsels.
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If you take away the user's agency, you arrive at short form.
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We've seen this happen before with Tinder.
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Instead of a dating app based on a menu, they showed one profile at a time, forcing feedback from the swiper.
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And what happened?
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The profiles became short form.
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Just photos, a couple of words, and an algorithm that encodes our subconscious responses more than our reflective intentions.
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Maybe you noticed that all the dating apps became Tinder.
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So is all of media becoming TikTok?
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I've been trying to figure out just how much human attention has shifted into these feeds, but only the platforms know that and they don't release the data.
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But they do these quarterly calls with investors.
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And if you go back through the past few years, you can kind of hear just how big of a response Meta and YouTube have made to the rise of TikTok.
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Reels already makes up more than 20 % of the time, 50 % of the time that people spend on Instagram.
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Over 15 billion views each day.
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30 billion daily views.
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50 billion plus.
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70 billion.
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We now average over 200 billion daily views on YouTube shows.
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Social media has gone through two eras so far.
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First was when all content was from friends, family, and accounts that you follow directly.
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The second was when we added all of the creator content.
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Now, as AI makes it easier, To create and remix content, we're going to add yet another huge corpus of content on top of those.
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It's really easy for me to think of this as the bowl of potato chips
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that someone sticks on the table that you didn't order, but it's there, so you snack on it.
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No one can eat just one.
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And it makes me wonder if Howtown Shorts are kind of like, do you know those like pea -shaped potato chips?
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Uh -huh, right, right, right.
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I know what you're talking about.
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It's like a green Cheeto.
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There's a version of this that's like, but our chips are made of vegetables.
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Yeah.
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I suppose it's no surprise that a bottomless personalized mystery snack dispenser could take over our media diets.
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But there is such thing as a healthy snack, right?
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So I'm going to tell you about all the research that I've read about this, and then maybe we can decide how we feel about it.
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Yeah, great.
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Yeah.
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It's interesting.
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As you've been researching all this, I have been feeling especially scatterbrained.
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I'm like distracted by the news.
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I've been moving between two different continents.
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So it's a happy coincidence that the sponsor for this week's episode is Headspace, the mental health platform.
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Did you try it?
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Yeah, yeah.
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They sent me a free subscription and I've been taking their Finding Focus course, which is basically 10 minute sessions of guided meditation.
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And it's been really nice, honestly, to have that break of my day.
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A couple of days ago, I actually just did one while I was waiting for the bus.
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You know, I've done a fair amount of reporting on mindfulness meditation over the years, and there's a real growing body of evidence from some pretty robust studies that it can improve your working memory,
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it can improve your ability to sustain attention.
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In one study, people who meditated with headspace for a month were less distractible than a control group who did these standard brain training exercises, things like puzzles and memory tasks.
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So if you, dear viewer, want to help your brain to focus, you want to learn to meditate, Maybe you just want to have these calm moments built into your day.
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You can start Headspace for free by following the link in our description box or scanning this QR code that's on screen.
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Usually it's just a two -week trial, but with this link, you get a full 60 days completely free.
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Before we get to TikTok, there's a bigger question to answer.
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Have our attention spans really shrunk?
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According to a 2015 post by Time Magazine, yes.
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They're now shorter than a goldfish.
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But this is one of those myths that won't die.
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Here's a fun fact.
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Some researchers have concluded that our attention span is now shorter than a goldfish.
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That's a scientific fact!
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The claim came from a report published by Microsoft, which had this graphic showing our attention span declining from 12 seconds to 8 seconds.
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But they were citing something called Statistic Brain, which in turn cited these sources. And
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when journalists tried to track down those sources, they didn't exist the numbers were entirely made up for both the humans and the goldfish.
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So what would it really take to measure attention spans?
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Well, I talked to one of the few people who have tried.
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My name is Gloria Mark.
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She's written a book called Attention Span.
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And way back in 2003, she convinced an investment management company to let her peek over the shoulders of 14 of their employees as they worked.
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And we would just observe them.
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And with stopwatches, every time they changed to do something else, we would click on the stopwatch and it was very, very tiring.
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Those employees spent about two and a half minutes working on their computers before they switched to checking email.
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or doing something else.
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Fast forward to 2012, she convinces another workplace to let her install software
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that tracks how often their employees click from one window to another and finds that they switch every 75 seconds on average.
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Now it's closer to 40.
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So yes, empirically we can say that on screens, attention spans have shortened.
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It's a little tricky because obviously we have this method switch.
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Like without that dot at 2004, the trend doesn't look as dramatic, right?
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It's sort of funny to me to think about
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the adjudicators or the watchers in that first test were also having their attentions tested.
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Like, were they able to catch, like they're also having to focus.
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The other big question I would have is like,
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is this measuring our ability to focus or just how much distracting stuff there is in our lives?
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What I'm worried about is
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that I'm no longer able to read a book for six hours like I did when I was 12.
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Has something changed about your brain?
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Yeah, has something changed about the ability of my brain?
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It's obvious to me that something has changed about the way that computers work.
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Like, yeah, I've just got notifications.
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There's literal sounds that are telling me you should be distracted by this other thing right now.
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And so I still have, I'm still curious about like, if there's actual damage being done to our mental systems, I guess.
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The advantage of Gloria Mark's approach is that it captures real life.
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It's not just bringing people into a laboratory, having them sit for an hour in front of a computer,
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but we actually observed what people did over the day in the course of their actual work.
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The limitation is that it can't distinguish between these three different influences on our ability to focus.
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There's our attentional capacity, that's what we generally think of when we say attention span.
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Then there's our motivation, how much we need or care about focusing on this task.
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And there's competition, how much is our environment distracting us.
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Now in a lab, they can get closer to controlling for motivation and competition.
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But the tasks that they give people don't look anything like real life.
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Let me show you.
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This is a classic attention test.
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They tell you to memorize this image.
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And then you go through these rows, crossing out the items that match the one that you memorized.
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You get 20 seconds per row.
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There's 14 rows.
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They look at how many errors you make, how fast you work, whether you get worse over time.
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And on this test, performance in adults has actually been increasing.
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That's according to a study that compiled scores from three decades and 32 countries.
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In children, overall performance hasn't changed, but their test -taking style has.
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They've become faster, making more errors, but also completing more items.
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Now, researchers who run lab tests like these don't claim to be measuring attention span.
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I think we often in daily life, and I even do this myself, we just talk about attention and it feels obvious like we know what it means to pay attention.
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But actually, if we give people different tasks, we can see that there's distinct components of attention that aren't necessarily related to each other.
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Monica Rosenberg studies patterns of brain activity during attention tests.
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When I'm watching a really engaging movie, like my lab collected data as people watched a Hitchcock film and YouTube videos about cooking.
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Is this the same kind of attention
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or is there something fundamentally different about being engaged in a narrative
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that I'm motivated to follow versus forcing myself to do this boring task?
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And, you know, it turns out there's some similarities, but there's also some differences. And
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so I think how well I do on one task with
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pictures is not indicative of how well I pay attention all the time in all contexts.
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It's certainly related, but it's not a perfect measure.
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So let's set aside the concept of attention spans.
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It's a really fuzzy term.
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It's hard to measure.
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The sharper question to ask is, if you binge short form video, what exactly gets worse?
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Is it your memory, your reasoning?
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That's what the next few studies are trying to pin down.
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If you ask, do people who say they're addicted to short form video also have trouble focusing?
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So far the answer to that seems to be yes.
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A recent review of 14 studies found that increased SFV use, that's short form video, was associated with poorer cognition,
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including attention and inhibitory control.
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But whenever you see that term was associated with, that's scientist's code for, we're not saying this causes the problem.
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Right.
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It's sort of our social media and teen health all over again,
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where it's are depressed teens becoming depressed because they are on social media or are they seeking it out?
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Yeah, I think this is the question with basically all of the harmful effects
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that people are attributing to these new technologies is almost all the research can't distinguish correlation from causation.
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But there are a few experimental studies that I wanted to highlight.
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There are at least two different cognitive tests where people perform worse after scrolling a shorts feed.
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One is a kind of trick question quiz
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and the other is about whether you can remember to do something that you plan to do.
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So first, there's a measure based on these three questions.
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A bat and a ball cost $1 .10 in total.
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The bat costs $1 more than the ball.
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How much does the ball cost?
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This is supposed to capture analytical thinking.
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To get these questions right, you have to switch out of autopilot.
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Like your gut is screaming 10 cents and you need to override that.
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72 college students at Peking University in Beijing took this test after either spending 30 minutes scrolling TikTok or 30 minutes reading.
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And the TikTok group did worse.
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The researchers wanted to know, does what you watch matter?
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So they ran a second study, but this time people watched either a cute animals playlist or a science experiments playlist.
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They also changed how people watch.
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Some could swipe through the videos like a normal feed, others had to sit and watch the same clips stitched together into one long video, and here's what they found.
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It didn't matter whether you watched animals or science, but the swiping groups consistently did worse on the cognitive reflection test.
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They got 0 .38 fewer questions right out of the three questions total.
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That's 12 % of the scale after 30 minutes from just swiping alone.
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Okay, interesting.
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So if you're subjected to essentially just a montage of videos that you don't have control over,
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you are not degrading your analytical thinking as much as
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if you're swiping through and getting to just skip whenever you are bored.
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It's sort of interesting because you think of that decision is interacting with the interface, right?
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That decision is cognitively more intense than just sitting back and letting something happen to you, right?
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Yeah, unless boredom is cognitively intense in a way that we don't recognize.
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Okay, so that's one test that short -form video makes you worse at.
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The other is a test of prospective memory, which is when you remember to do something that you intended to do,
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like picking up the dry cleaning or joining a Zoom meeting or taking a medication that you're supposed to take.
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Researchers at the University of Munich wanted to know how short form video feeds affect that ability.
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Because it was coming from a general observation that like, if you scroll a bit, you feel like, I don't want to say that you feel like new,
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but like you kind of...
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Dissociate.
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Yeah, yeah, dissociate a bit.
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So it was something like, okay, it's actually really happening.
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Like, and we felt that.
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So we said, okay, let's figure out how we can,
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you know, make this solid user study and investigate what can be a cognitive function that would be associated.
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So how would you test perspective memory?
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Boy, oh boy.
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Well, it feels like, yeah, we're getting tested all the time.
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If you tell me to do something and then you wait 30 minutes and see if I did it, is that long enough to be considered perspective memory?
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Or does it have to be like, I know I have a meeting on Wednesday at one.
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And do you show up at the meeting?
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Is that is there a timescale involved in what is considered perspective memory?
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Yeah, well, I mean, the way that the way
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that psychologists define it for their purposes is even much shorter than
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that because they need a way to measure it in the lab with subjects
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that they don't have access to for very long.
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So the way they try to capture perspective memory, which is this idea of remembering a previous goal or intention, is they embed a task within a task.
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So you're going to try this out.
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No, great.
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I should have slept more last night.
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The subjects were told to press N on their keyboard if the word on the screen is a real word.
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My heart is racing.
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And an M if it's a fake word.
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But if they saw the words blue, purple, or green, they were supposed to press Q, W, or E respectively.
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That's the perspective memory task.
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Nope, I did it wrong.
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I got it wrong already.
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I already know.
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Houseman?
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Joust.
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Green.
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I love green.
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They had people do this task and then take a 10 -minute break in which they either just rested, scrolled Twitter, watched a YouTube video,
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or scrolled TikTok, and then they took the test again.
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When they compared the scores from before the break and after the break, the performance on the real -word, fake -word task was the same.
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But for the blue -purple -green task, where they needed to remember that second intention, one group saw a big drop in their scores.
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It was the group that scrolled TikTok during the break.
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Thank you.
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What this is basically getting at is if you should be keeping something in mind, you lose that with the scrolling behavior.
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But not just scrolling, because Twitter is a scroll behavior as well.
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Right, that's true.
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It's short -form video specifically.
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That study took place in Germany, but I was able to give this test to Adam in English
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because researchers in the UK replicated it in their own sample of 45 students.
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And this time, they tested different ways of watching short -form video.
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One group was limited to 10 swipes, the other group was allowed to swipe as much as they wanted, and there was a control group that just sat quietly.
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The group that watched shorts but was limited to 10 swipes didn't see a drop in their performance.
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The unlimited swiping group did.
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So again, it's like something about just being able to do this mindlessly is the problem.
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So if you're watching this in a clipped short, don't swipe away.
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Actually, what you should do is download all the Howtown shorts, but watch them in one big stream.
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There you go.
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So that's basically where we're at with the research.
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There's a few of these experimental studies.
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They're using a few different types of cognitive tests, none of which really map on to our popular conception of attention span,
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but our related cognitive skills.
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And they're raising a few red flags,
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but obviously the caveats of small samples and tasks that are very different from our everyday lives.
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Now I want to know if I'm scrolling TikTok every night before bed for two hours, am I just generally having a worse perspective memory in my life
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or is that confined to just right after I use it?
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Long -term studies would actually really inform and maybe guide better ethics and policy in designing the interface.
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I think this is actually something that could really impact the quality of life of people, probably, and provide the evidence that maybe something has to change.
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In 1890, the pioneering American psychologist William James wrote, My experience is what I agree to attend to.
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My experience is what I agree to attend to.
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And there's more.
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He said, Only those items which I notice shape my mind.
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Without selective interest, the consciousness of every creature would be a gray, chaotic, indiscriminateness impossible for us even to conceive.
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135 years later, a consciousness of chaotic indiscriminateness is not impossible to conceive.
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It's how I often feel when I lose myself in a feed.
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Even when that feed is full of things that are educational and funny or beautiful or really useful, Genuinely, my relationship to mangoes will never be the same.
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And yet, I keep coming back to this question of user agency, or what James called selective interest.
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Agency is at the heart of both analytical thinking and perspective memory.
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Those weird little tests are basically asking if your brain is on autopilot, or if you can slow down, make a turn, remember where you intended to go.
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It's not just your intentions that get lost.
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Feeds that nudge the customers into autopilot tend to nudge the cooks into autopilot too.
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Scientists just created...
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Here's what would happen...
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Scientists just...
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Here's what would happen...
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Scientists just...
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I bet you...
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I bet you...
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But not everyone.
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Last time I checked Smarter Every Day, you guys had not posted anything into the shorts feed.
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Is that still the case?
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That's the case.
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I have elected not to do that because I don't think it's good for people.
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I don't think the infinite scroll is healthy for our minds.
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It's easy for me to say this because Smarter Every Day has been around for a while.
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And there's a lot of really awesome people that support the channel.
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But I think saying no to shorts is powerful.
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And I think it ultimately increases trust in the creator.
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I could be wrong about that, but I don't know.
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That's where I'm at.
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Dustin's such a good guy.
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Yeah, I mean, I think, you know, obviously, we want to be acting with integrity
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and sort of like living our values in all parts of our life, including the way we make this channel.
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But like having bite sized information, you know, when I was at NPR, we would make three minute radio pieces all the time, right?
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That was like a pretty typical length.
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And I didn't feel like those were bad for the world, just because it was a compressed amount of information about a complex subject.
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I thought like, oh, this is good.
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Like, someone is learning something that they wouldn't otherwise know.
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The question is do we want to participate in this in these endless scrolls?
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I don't know if you see these comments sometimes on our shorts.
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This one says like your contents are the most anti brain rot Content out there actually genuine
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and very high quality and then someone responded
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No such thing as anti brain rot content when it's short form
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So that's basically kind of the question that we need to answer.
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Yeah, yeah, that's right.
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Is there such thing as a good short?
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As an anti -brainrod short?
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What do you think?
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Is this research strong enough that we should be making a change?
357
Let us know in the comments.
358
You can also find more of my conversation with Destin
359
and hear Adam and I processing all of this over on our Patreon.
360
And if you're interested in meditation, which is arguably the opposite of binging a shorts feed?
361
Click the link in our description to try Headspace free for 60 days.
362
That deal doesn't last, so try it now, see how your mind responds.
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Vocabulario y notas de pronunciación para esta lección
Esta lección de conversación de nivel B2 se basa en el vídeo “What the actual science says about "brain rot"”. Este vídeo tiene 362 frases y 4405 palabras para practicar shadowing. La parte hablada dura 25:29. El hablante habla a un ritmo natural de unas 173 palabras por minuto, cercano a una conversación cotidiana. El 83 % de las palabras está entre las 3.000 más comunes del inglés; conviene repasar el resto antes de empezar.
Vocabulario clave de este vídeo
Las 15 palabras más avanzadas del vídeo, con su pronunciación y significado:
| Palabra | Pronunciación | Significado |
|---|---|---|
| scroll sustantivo | /skɹoʊl/ | rollo, pergamino |
| swipe verbo | /swaɪp/ | deslizar, pasar |
| cognitive adjetivo | /ˈkɑɡ.nɪ.tɪv/ | cognitivo, cognoscitivo |
| researcher sustantivo | /ˈɹiˌsɝ.t͡ʃɚ/ | investigador, investigadora |
| span sustantivo | /spæn/ | palmo, cuarta |
| autopilot sustantivo | /ˈɔtoʊˌpaɪlət/ | piloto automático, autopiloto |
| morsel sustantivo | /ˈmɔɹsəl/ | pizca, porción |
| distract verbo | /dɪˈstɹækt/ | distraer, despistar |
| interface sustantivo | /ˈɪn(t)ɚˌfeɪs/ | interfaz |
| goldfish sustantivo | /ˈɡoʊldfɪʃ/ | pez rojo, pez dorado |
| redaction sustantivo | /ɹəˈdækʃən/ | testadura, tachadura |
| addict sustantivo | /ˈæd.ɪkt/ | adicto, viciado |
| snack sustantivo | /snæk/ | tentempié, refrigerio |
| cognitively adverbio | /ˈkɑɡ.nɪ.tɪv.li/ | cognitivamente |
| conceive verbo | /kənˈsiːv/ | concebir |
Phrasal verbs que vas a escuchar
| Palabra | Pronunciación | Significado |
|---|---|---|
| figure out verbo | averiguar, captar | |
| go through verbo | atravesar | |
| cross out verbo | tachar, tarjar | |
| make up verbo | /ˌmeɪk ˈʌp/ | reponer, suplir |
| pick up verbo | coger, asir | |
| pin down verbo | inmovilizar, atrapar | |
| set aside verbo | /sɛt.əˈsaɪd/ | provisionar |
| sit back verbo | relajarse |
Frases que vale la pena repetir
Frases cortas y completas del vídeo que puedes reutilizar en la conversación diaria:
- We're all addicted to this.
- We're not running on vibes over here.
- Have our attention spans really shrunk?
- Has something changed about your brain?
- Is it your memory, your reasoning?
Gramática en este vídeo
Las estructuras que más usa el hablante, con las palabras exactas del vídeo:
| Estructura | En el vídeo |
|---|---|
| Present perfect continuous have/has been + -ing — una acción que empezó antes y continúa | I've been wanting · I've been trying · you've been researching |
| Present perfect have/has + participio pasado — una acción pasada que sigue importando ahora | I've been · has actually tested · has introduced |
| Voz pasiva be + participio pasado — importa lo que ocurre, no quién lo hace | had not been done · be attributed · are personalized |
| Oraciones de relativo who / which + oración — información extra sobre una persona o cosa | course, which is · people who meditated · people who have |
Pronunciación a tener en cuenta
El hablante usa 76 contracciones y formas reducidas, como don't, I'm, I've. Dilas en su forma corta, tal como las oyes.
- Los sonidos de “th”: algorithm /ˈælɡəɹɪðm̩/, altogether /ɔl.tuˈɡɛð.ɚ/, ethics /ˈɛθ.ɪks/
- Los sonidos de “sh” y “zh”: goldfish /ˈɡoʊldfɪʃ/, redaction /ɹəˈdækʃən/, meditation /mɛdɪˈteɪʃn̩/, dissociate /dɪˈsoʊ.ʃi.eɪt/, personalization /ˌpɝs(ə)nəlaɪˈzeɪʃən/
- Palabras largas — cuida el acento: autopilot /ˈɔtoʊˌpaɪlət/, analytical /ˌæn.əˈlɪt.ɪ.kəl/, cognitively /ˈkɑɡ.nɪ.tɪv.li/, dissociate /dɪˈsoʊ.ʃi.eɪt/, personalization /ˌpɝs(ə)nəlaɪˈzeɪʃən/
Sonidos difíciles para hispanohablantes:
- s + consonante al inicio — sin añadir una “e” delante: scroll /skɹoʊl/, swipe /swaɪp/, span /spæn/, snack /snæk/, sponsor /ˈspɒn.səː/
- /v/ — no es /b/: los dientes tocan el labio inferior: cognitive /ˈkɑɡ.nɪ.tɪv/, cognitively /ˈkɑɡ.nɪ.tɪv.li/, conceive /kənˈsiːv/, selective /səˈlɛktɪv/, vibe /vaɪb/
- /z/ — sonora, no /s/: personalization /ˌpɝs(ə)nəlaɪˈzeɪʃən/, personalize /ˈpɜː.sə.nə.laɪz/, observe /əbˈzɜːv/, intentions /ɪnˈtɛnʃənz/, observation /ˌɑbzɚˈveɪʃn̩/
Cómo practicar con este vídeo
- Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
- Empieza a velocidad 0,75×, haz shadowing frase por frase y vuelve a la velocidad normal cuando te resulte fácil.
- Grábate y compara con el original, prestando atención a palabras como scroll, swipe, cognitive.
¿Qué es la Técnica de Shadowing?
Shadowing es una técnica de aprendizaje de idiomas respaldada por la ciencia, desarrollada originalmente para la formación de intérpretes profesionales y popularizada por el políglota Dr. Alexander Arguelles. El método es simple pero poderoso: escuchas audio en inglés nativo y lo repites en voz alta de inmediato, como una sombra que sigue al hablante con solo 1-2 segundos de retraso. A diferencia de la escucha pasiva o los ejercicios de gramática, el shadowing obliga a tu cerebro y músculos de la boca a procesar y reproducir simultáneamente patrones de habla reales. Las investigaciones muestran que mejora significativamente la precisión de la pronunciación, la entonación, el ritmo, el habla conectada, la comprensión auditiva y la fluidez al hablar, convirtiéndola en una de las metodologías más efectivas para la preparación del IELTS Speaking y la comunicación en inglés en el mundo real.