A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological self-destruction — and it therefore may not want to talk to us.

Where are all the aliens? Maybe they just don't want to talk to us

Source: space
Source Link: https://www.space.com/space-exploration/search-for-life/where-are-all-the-aliens-maybe-they-just-dont-want-to-talk-to-us