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  • We here at SciShow love us when you ask us questions, so we'll have things to talk about,

  • and we get lots of great ideas that way. But then sometimes, something weird happens on

  • the internet, and our twitter feed becomes completely unmanageable because the WHOLE

  • WORLD is confused!

  • This dress...what? What?!

  • To me, it is 100% without a doubt clearly and absolutely white and gold.

  • And according to this Buzzfeed poll that over two million people have taken, I am in the

  • majority...and the majority is wrong.

  • I’m Hank Green, and this is a very weird special edition of Scishow News.

  • [Intro]

  • The dress is actually blue and black, and a lot of people see it that way as well.

  • The difference between these groups of people probably isn’t about rods and cones and

  • how sensitive your eyes are, or whether youve spent too much time staring at the sun, as

  • some people have suggested. It’s more likely simply a matter of your brain’s interpretation

  • of the data your eyes are sending.

  • The picture has just awful white balance, messing up the colors of the dress. White

  • balance is just the process that photographers -- orpeople who make videos for a living

  • -- use to remove the influence of lighting on colors being captured, fixing it so that

  • things that appear white in person also appear white in the image. Using thattrue white

  • as the baseline, all of the other colors should also fall into place, so that they look natural,

  • too.

  • If you just pull the colors out of the picture and blow them up, it's neither white and gold

  • or blue and black; it's kinda muddy, dingy purple and orange.

  • So the amazing things is that no one...NO ONE! sees the dress as the color it’s actually

  • portrayed in the picture.

  • Our brains are super good at interpreting images and making sense of them even when

  • they aren’t accurately represented. We can look at a browned, faded old photograph from

  • the 70s and understand what the colors beneath all of that degradation are. Sometimes we

  • enjoy doing that so much we use instagram filters that actually intentionally mess up

  • our pictures.

  • Here’s the weird thing...colors are never really themselves. Depending on the light

  • source, white can actually look to our eyes like blue or orange or gray -- pure white

  • is very uncommon.

  • Lighting, whether it’s the sun or halogen, incandescent, or fluorescent lights, change

  • the colors of the things they illuminate. Our brains are great at perceiving the original

  • colors underneath rather than the color that the eyes are actually seeing. If we couldn’t

  • do this, the world would be hugely confusing to us. We'd think things were changing color

  • all the time instead of just the light changing color.

  • Cameras have to figure out whatwhiteis based on something in the image and then

  • interpreting the rest of the image based on what it decidedwhitewas. Here in the

  • studio, we use this little card so that we can make sure were balancing correctly

  • and my skin doesn’t look all green and gross.

  • In the case of this miraculous photo of a dress, the camera did a terrible job of finding

  • the white balance. So terrible that it’s actually hit a weird threshold between how

  • different people understand the image. Some brains see thewhitein the image as

  • the light color, making the darker color gold; other brains see the image as washed out,

  • with no white at all, so the dress is blue and black.

  • Now the dress can’t be seen both ways simultaneously, so whichever way your brain is more comfortable

  • seeing it becomes the super obvious and objectively true way to perceive it.

  • And this is what it really comes down to: perception. Our brains make trillions of little

  • subconscious decisions like this every day, but usually all humans make pretty much the

  • same ones. This image is just really great at being in between two different potential

  • interpretations.

  • Why some people see it one way and not the other, could be a function of any number of

  • things, objectively, like, I'm not comfortable with any of the proposed hypotheses because

  • none of them have had any science done on them because we've known about this for like

  • twelve hours.

  • But what's driving all the chatter online, is that people have chosen up sides. Some

  • people are on team gold/white and others are on team black/blue. They answer polls, and

  • they argue with each other in the comments and like, "STOP SEEING WHAT I DON'T SEE!"

  • That’s because the whole thing is really an exercise in the study of perception, and

  • psychologists will tell you that perception is largely about bias.

  • And your biases can be framed by things like expectation -- if you first saw the picture

  • on some facebook share, with your friend saying "How can people not see that this dress is

  • white and gold?!" then your expectations were already set, and you are more apt to see it

  • as a white and gold as well.

  • And of course, we cherish our biases. So once you've seen the dress as black and blue, it

  • gets increasingly hard with time to UN-see it that way -- especially the more people

  • you're arguing with.

  • So the deeper truth is the one that were least comfortable accepting: perception of

  • reality is not the same thing as reality. Our brains are good at interpreting the world

  • around us, but they are certainly not perfect. And we should be more comfortable with the

  • idea that different people perceive things differently. And once that perception happens,

  • it’s as real to them as our’s is to us.

  • Thanks for watching this very weird episode of SciShow News. If you want to keep getting

  • smarter with us, you can go to YouTube.com/scishow and subscribe.

We here at SciShow love us when you ask us questions, so we'll have things to talk about,

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あのドレスの科学 (The Science of That Dress)

  • 313 6
    Michael Ip に公開 2021 年 01 月 14 日
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