So about why aliens haven't contacted us

[Aerozord]

Now statistically there kind of has to be other life in the universe. Just too many possible chances for it to happen. People often talk about why then we have never made contact. One popular idea is we aren't advanced enough to bother with. But I think I know of a simpler reason.

They have absolutely no clue we exist.

Lets assume we are right and you just cant go faster than the speed of light. Heck even getting anywhere close is next to impossible. This makes interstellar travel very impractical. While a species would likely colonize worlds within its own star cluster there is little reason to go beyond it. While its likely for there to be sapient life in the galaxy, the chances of it being within a hundred light years of us is small. Then even if they do catch some stray radio waves and realize our civilization exists they aren't going to spend a few centuries to investigate a race that might be hostile assuming it still exists at all.

Its kind of like how we had so many hidden pockets of humanity up until very recently that were unknown to the rest of the world. there can be entire societies that exist, but randomly stumbling across them would be pure chance and in this case the chance is astronomically (heh, pun) low