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  • - No one knows why humans get motion sick.

  • I mean, we know what causes it:

  • it's the difference between the motion that we see

  • and the motion that we feel.

  • But why nausea?

  • Why not a migraine or a loss of bladder control?

  • There's a popular theory that says

  • it's because our brain thinks we've been poisoned.

  • Some toxins do mess with your balance.

  • But that is just a theory.

  • One scientist describes that theory as not just unproven but untestable.

  • Anyway, I'm with these reprobates,

  • and we've made a car that brings video game lag into the real world.

  • - It lands right on the hazards,

  • so for when we crash... [laughing]

  • - Oh, there's two. I felt like I just did a magic trick.

  • - It's upside down! [laughing]

  • - Really?

  • [laughing]

  • - So here's the plan.

  • Inside this shrouded driving compartment...

  • Are you okay in there?

  • It's just suddenly very bright for him.

  • The driver can see the view projected on this monitor,

  • and that view is coming from this front-facing camera just here.

  • And that view can be delayed

  • as it runs through the passenger seat computer,

  • and that can be by fractions of a second

  • or by a minute if we wanted to.

  • Right, you ready?

  • - Yeah.

  • God d--

  • [chuckling]

  • - Right, Michael, are you ready?

  • - Ready is a relative term, Tom.

  • - Okay, on minimum lag, here we go,

  • in three, two, one, go.

  • - Oh no!

  • Oh!

  • Woo!

  • We're about to crash into the--

  • - No, you got it. Just go slow.

  • Go right.

  • Hard right, hard right, hard right.

  • [laughing]

  • - Woo!

  • - Now, we are not running a proper double-blind scientific experiment here.

  • But, from our rough results, here's what we found.

  • If the view is only very slightly lagged, the brain just copes with it.

  • It's weird watching a screen to pilot a car,

  • but it can be done.

  • Oh, that is weird!

  • - Stop, stop, stop, stop!

  • Woo-hoo!

  • - Where's the shifter? Where's the shifter?

  • If the view is very lagged, by more than a second,

  • then the brain treats it as two separate tasks,

  • and it's like a logic puzzle.

  • - Okay, okay.

  • This is...

  • This is actually, I think, a little nauseating.

  • Oh my lord!

  • This is awful, Tom!

  • I have to go really slow.

  • I don't know. I actually, like, I don't feel sick.

  • I just feel, like, very confused.

  • - You can drive and you feel those reactions,

  • and you use the old view to plot your course,

  • but the two are unrelated.

  • It's a bit confusing and a bit nauseating, but no more

  • than looking at any other screen in a moving vehicle.

  • Oh, I don't like this! I don't like this at all!

  • - Stop, stop, stop, stop!

  • [laughing] - Really?

  • [screaming]

  • That's so confusing!

  • Like, in motion simulators this is what you find.

  • You can trick the body, as long as it's doing a little bit of movement,

  • that it thinks it's doing a lot.

  • It turns out it works the other way.

  • But there's this weird spot between those two,

  • where the view is just lagged by a fraction of a second,

  • enough that the brain is trying to reconcile

  • the movement and the view but failing constantly.

  • And that, that is not pleasant.

  • - Bro! [laughing]

  • Bro!

  • Please!

  • Oh no!

  • - Oh, this is so bad!

  • - So I go over here.

  • So I'm in the future, right?

  • So that means I'm going too far right.

  • Too far!

  • Awesome. I'm gonna go ahead and vomit into that bucket if you don't mind.

  • - How do you feel?

  • - Oh my God! That is the worst thing ever.

  • - Oh!

  • Oh!

  • Oh.

  • Oh yeah, this is an unpleasant experience.

  • - Oh no!

  • Oh, I don't like this at all!

  • - Okay.

  • Okay, go a little wider with this one.

  • - Not wide enough!

  • - Stop, stop, stop, stop.

  • Woop, there goes that cone.

  • - Oh no!

  • [shouting] Now I'm nauseous.

  • That's bad.

  • - All right, Tom.

  • - What was the time?

  • - You have officially the worst time of the day.

  • It's like two minutes and 30 seconds.

  • - That's fair. All right.

  • Let me... could someone please,

  • I'm gonna put the parking brake on and keep my foot on the brake.

  • Could someone please remove the cone from under the car?

  • Thank you very much to William Osman for partnering in building this with me.

  • - Donating the car.

  • - This was mostly you work and your car.

  • Check out his channel for that.

  • Thank you, Michael, for coming along.

  • You can check out his channel

  • for a lot of videos that have been demonetized.

  • Thank you, folks.

  • - We need to buy a buffing wheel.

  • [laughing]

  • - It's gonna need more than a buffing wheel.

  • - I'm sorry.

- No one knows why humans get motion sick.

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乗り物酔いの怪しい実験 (A Questionable Experiment in Motion Sickness)

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    林宜悉 に公開 2021 年 01 月 14 日
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