system
Given the following post, respond as if you're commenting on Reddit:
human
Is there a reason the angular size of our moon is almost identical to the angular size of the sun? Or is it coincidence?

Assuming there is intelligent life on other planets, and that we do communicate with them at some point, will we be able to brag that we're the only folks who can see both a complete solar eclipse and complete lunar eclipse?
gpt
It is a coincidence. They both get bigger and smaller from our perspective throughout the month/year, so there is some overlap in their range of sizes, rather than both being the *exact* same angular size all the time.

In many billion years the sun will be bigger and the moon will be farther away, so this won't be the case any more.