It took time for planet Earth to form and then it took some more time for life to form and then more time until humans started and more time until humans evolved to where they are now. Therefore, maybe it will take some more time for extraterrestrial life to form somewhere in the universe that might be reachable within our proximity or somewhere far away that might not be reachable yet.
Also time travel might be possible but we just don’t know how to do it yet just like how all the technological advancements we have today was not possible a long time ago.
Also time travel might be possible but we just don’t know how to do it yet just like how all the technological advancements we have today was not possible a long time ago.