You all know the common theories for why we havent seen aliens and all like they dont want to meet us or were like that tribe on an island that doesnt know about the tech and all. But what I think (dont know if any other sources have this as of know as I just came up with it) if we havent found any signs of life in this galaxy maybe there is in other galaxies, but those are probably very far away like maybe 4 to 5 billion lightyears meaning they probably wouldnt even know we exist as we can only see the past of space and earth is around 4.5b years old. It would even take way less distance for them to not know that we exist as humans havent been around for a huge amount of time. So thats my theory on why we havent seen any form of life outside of our planet.
