this post was submitted on 20 Feb 2024
433 points (100.0% liked)

196

16087 readers
1750 users here now

Be sure to follow the rule before you head out.

Rule: You must post before you leave.

^other^ ^rules^

founded 1 year ago
MODERATORS
 
top 46 comments
sorted by: hot top controversial new old
[–] [email protected] 39 points 6 months ago (5 children)

My god is there a way to like see it properly???

[–] [email protected] 31 points 6 months ago* (last edited 6 months ago) (1 children)

There's not; your eyes see the vague white lines formed by the lighter boxes, but when they're in your peripheral vision your brain is filling in the missing information, and because they're so close in location, colour, and thickness to the straight lines, your brain conflates the two. This results in exaggerating the white lines so you're more aware of them than when you're looking straight at them and can see the outlines of the white boxes clearly, and the white and green lines seem to blend when they're both in your peripheral vision.

[–] [email protected] 6 points 6 months ago* (last edited 6 months ago) (1 children)

I've got a bit of a hangover, or maybe I'm still drunk, I dunno, but when I look at the center of the image and focus, all the lines go straight. I'm also on a phone, so maybe not enough is in my peripheral vision to completely fuck me up.

EDIT: It was definitely the alcohol. I'm more sober now and I can't do it anymore.

[–] [email protected] 5 points 6 months ago

That's really interesting! We need to see if we can replicate that. Everyone get drunk and look at the picture! We need different states of inebriation, too. C'mon people 👏 Citizen science!

[–] [email protected] 10 points 6 months ago (1 children)

I find going out of focus makes the grid appear straight

[–] [email protected] 2 points 6 months ago

It does make it a little better yee

[–] [email protected] 7 points 6 months ago

Look at the white zigzags, they're what trick your brain. If you switch to the square lines after keeping the white zigzags in mind you should be able to see both and your brain doesn't switch back and forth between them.

[–] [email protected] 6 points 6 months ago

I opened the image in an editor and replaced the yellow lines with red ones, which made the lines look a lot straighter. I think the illusion comes from the color of the yellow interacting with lines suggested by the white background "pebbles".

[–] [email protected] 3 points 6 months ago (1 children)

Close one eye and tilt your phone away from you slightly

[–] [email protected] 3 points 6 months ago

Neato, that worked pretty well

[–] [email protected] 30 points 6 months ago (1 children)

Hahahaha, you dumb bastards.

It's not a schooner... it's a Sailboat.

[–] [email protected] 6 points 6 months ago (1 children)
[–] [email protected] 7 points 6 months ago

You know what? There is NO Easter Bunny! Over there, that's just a guy in a suit!

[–] [email protected] 23 points 6 months ago (1 children)
[–] [email protected] 2 points 6 months ago

Yeah, it makes me dizzy

[–] [email protected] 15 points 6 months ago (1 children)

That's clever as hell. It's been a long time since I've seen a new illusion.

[–] [email protected] 2 points 6 months ago

I thought the exact same thing. Always fun to find a new way my brain can be tricked.

[–] [email protected] 14 points 6 months ago (1 children)
[–] [email protected] 14 points 6 months ago (2 children)

I'm curious if this relies on the fact that we're looking at on pixelated screens to work. But not so curious that I'll print it out to check.

[–] [email protected] 12 points 6 months ago (1 children)

As far as I know it relies on the fact that you only have clear vision in the central 20% of you FoV, and your brain just makes the rest up. Also the big blind spot

[–] [email protected] 5 points 6 months ago (1 children)

I thought it was 2°? A dime held out at arms length if I recall.

[–] [email protected] 3 points 6 months ago (1 children)

Honestly, idfk. Maybe that's the blind spot?

Just now looking at things the clear bit of my FoV feels like 20%...which is clearly suuuper scientific. I'm getting ill, and have enough energy to comment on the internet or fact check myself....not both.

[–] [email protected] 4 points 6 months ago* (last edited 6 months ago) (1 children)

Wikipedia says it's more like +/-1° or about 2° is where you have more cones than rods. +/-10° has elevated cones compared to other parts of your FOV

That being said, not sure how much I trust this graph given that I clearly have a blind spot on the right side for my right eye (temple side) but this marks it as only on the nose side? Unless I'm mistaken

E: am mistaken

[–] [email protected] 1 points 6 months ago (1 children)

Everyone's eyes are different. I'm sure there's a blind spot that's supposed to be where they say it is, but who's to say your eyes are exactly like the average eye?

[–] [email protected] 2 points 6 months ago (1 children)

The blind spot is where the nerves pass through the retina to reach your optic nerve. I was mistaken; because the image is flipped when it passes through the lens, the nose side has the blind spot but visually the hole is on the temple side, as is shown here

[–] [email protected] 1 points 6 months ago
[–] [email protected] 8 points 6 months ago (1 children)

I've seen this illusion on paper and it still works. Not that printed paper is functionally different from pixels.

[–] [email protected] 4 points 6 months ago

Ha, good point. I'm showing my age here. I understand our modern phone screens have resolution approaching that of good print, but when I think of a screen my brain still defaults to something like a 14" VGA at 57PPI :-)

[–] [email protected] 11 points 6 months ago

OpenStreetMap editors hate this trick

[–] [email protected] 9 points 6 months ago

American suburbs

[–] [email protected] 8 points 6 months ago* (last edited 6 months ago) (1 children)

Nah fuck that how does that even work

Edit: never mind figured it out: the "random buildings" aren't random but rather build alternative paths that you only really see in your peripheral vision

[–] [email protected] 3 points 6 months ago (1 children)

Pretty much any optical illusion that involves "random" patterns actually involves pseudorandom noise, just like adversarial generative networks use tailored pseudorandom noise to fool the discriminator.

[–] [email protected] 1 points 6 months ago

Also I never really thought of it that way, but now I'm imagining all of those "the ai thinks this is a bus" things as alien optical illusions.

[–] [email protected] 7 points 6 months ago

Wait what's the illusion?

[–] [email protected] 5 points 6 months ago

I came thinking it was urban sprawl.

[–] [email protected] 5 points 6 months ago

"In 200 feet, curve slightly straight."

[–] [email protected] 4 points 6 months ago (1 children)

slightly took of my glasses moved them up a bit, and boom pretty much doesn't work

[–] [email protected] 1 points 6 months ago (1 children)

I took off my glasses and it was worse!

[–] [email protected] 1 points 6 months ago

don't completely take them off

[–] [email protected] 3 points 6 months ago
[–] [email protected] 2 points 6 months ago

Take my comment as an upvote. I think the current number is a proper reaction already :)

[–] [email protected] 1 points 6 months ago (1 children)

Where are these circles coming from!?

[–] [email protected] 7 points 6 months ago (1 children)

White blocks creating curved lines

[–] [email protected] 1 points 6 months ago (1 children)
[–] [email protected] 1 points 6 months ago

Here is an alternative Piped link(s):

Ticket to ride white line highway

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I'm open-source; check me out at GitHub.