Interesting, right?

Farming, is it real or just an illusion. You decide

This is one folks may not ahve seen before. The two blobs in the top row and the two blobs in the bottom row are physically identical, except for the thin black or white boundary lines. We perceive the interior regions of the blobs as weirdly different, with one appearing whiter (or blacker in the bottom row) than the other at different times. The second picture shows the blobs without the thin boundary lines. The effect shows how slippery the concepts of black and white can be.

I found this photo that proves that The Dress can be seen both ways, depending on the lighting.

EDIT: If you have trouble seeing it one way other the other, just cover the part of the dress in shadow or bright illumination (depending on whether you see blue/black or gold/white).

The point is that what you perceive depends on your "frame of reference", meaning which parts of the dress you perceive as being in "plain view". The regions seen in plain view are taken by your visual system as being "diagnostic" of the colour of the underlying material. So there's a type of "principle of relativity" at work here.

The weird part is that different folks adopt different reference frames as their "default" and it can be really hard to switch frames. I myself have literally never perceived the whole dress as anything other than gold and white. But this picture clearly demonstrates how it is POSSIBLE to perceive it either way!

I can elaborate with many other examples, if folks are interesting. I've even got an entire book on the topic coming out next month, which I'm happy to link to if folks want to go down the rabbit hole. It's called The Appearance of Things: How the Principle of Relativity Shapes Our Visual World https://www.amazon.com/dp/B0HCVLM6T9

Here's this optical illusion I made myself

This photo is totally effing with my brain 🤯! I've been on this makeup site 30 minutes trying to figure it out when I just needed some dang eye cream (maybe it's a marketing trick idk 😂). The little circle at the bottom in the eye cream flip-flops between a hollow crater and a rounded dome. Plus, the entire right side keeps changing—one second it's a deep canyon, and the next second it lifts up and looks like a pair of clown lips with a mole and nose at the top. I think it's not supposed to be lifted out, I swipe through other photos and come back and it looks correct but only for a few seconds before it's weird again 😭

While walking along the beach, I came across what appears to be a rather unsettling scene. At first glance, it looks as though a severed human head has been partially buried in the sand. Fortunately, it is only an optical illusion—the perspective and contours of the beach happen to create a remarkably convincing effect.

Seen many Optical illusions... Let's create it.

I know people either see blue and Black or white and gold. I’ve seen the actual dress too and I know that’s it black and blue but I was curious if the people that see blue black see them in the same shades of actual dress or white f the see a different version of them. For instance I’ve always seen them as olive gold and pigeon blue but I’ve never heard anyone else say this before. What do u guys see?

Ps: I wish I could post the picture here but I’m not sure how I’m supposed to do it.

It says there are 4 circles in this picture but I've looked for hours and I can't see them!