the jastrow illusion, how does it work?

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i know it has something to do with the arches but i have monkey brain and i cant really wrap my head around it.

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Anonymous 0 Comments

It’s really just because the one on top starts further to the left than the one of the bottom so it’s end point is further left, making it seems shorter. If you were to align them where neither is further left/right, they are the same distance.

The only thing the arches do is just make it harder to notice that one is further left/right. If they were boxes instead or even trapezoids with slanted sides, it would be easy to tell they were the same size because they end/start in the same place

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