Sensory illusions demonstrate that our perception is a user interface designed by natural selection for survival rather than for experiencing objective reality.

“So he has a name for that as well and he calls that the interface theory of perception. Where he's like, to ask whether my perception of the moon is veridical, like is this an illusion? Is it Does it really appear that large? Is it looks bigger at the horizon? Well, he's like, just give it up”