In Part I of Kurz Gesagt’s animated explainer of the Fermi Paradox we learned about the vexing problem that is the Great Silence. This follow-up video presents some intriguing solutions that may explain the disturbing absence of intelligent alien life.
And the video ends on a key point: Speculation without data is useless. The moral is to keep looking.
And, provided we don’t destroy ourselves, I think we will keep looking by whatever means science provides us. If the night sky was an empty void we’d want to go an explore that void just to understand why it’s void and not something else. This was a major point in Lem’s book Return from the Stars (Which I recommend by the way.)—never underestimate the power of human curiosity.