Ok so here's something that has crossed my mind a lot: isn't it possible that there are other life forms that are NOT carbon based? Couldn't it be that life has evolved differently elsewhere, and that, somewhere in the universe, there are life forms that drink liquid potassium or something, and need to breathe methane?

I got to thinking about this when, a few years back, science was baffled to discover some sort of life form that lives entirely off of arsenic.

Edit: here is an article about it that kind of goes on the same place in going with this https://www.livescience.com/9046-mic...s-arsenic.html