Reminds me of a proposed explanation for https://en.wikipedia.org/wiki/Moon_illusion https://en.wikipedia.org/wiki/Moon_illusion We think it's further away at

Reminds me of a proposed explanation for https://en.wikipedia.org/wiki/Moon_illusion https://en.wikipedia.org/wiki/Moon_illusion We think it's further away at the horizon, so should be smaller, but it's not smaller, so we think it's closer, and therefore think it's bigger.