Ahh yea the Fermi Paradox…at once both sad and incredibly scary. Where are all the aliens?
One of the possibilities is that the galaxy is controlled by a predatory species that waits until a planet evolves enough to be a threat, then extinguished the civilization. Others out there are shaking their heads at us announcing our presence with emissions. Aka ‘No news is good news’
Or The Great Filter theory that there lies something which advanced life has great difficulty moving past…and we better hope that it’s behind us (multi cellular life, an evolved brain, nearby supernovae, gamma ray burst, etc) and not ahead of us (destroying ourselves with nuclear war, some undiscovered tech that wipes us out, exhausting our planets resources, etc). Aka ‘if we discover advanced, dead life on another planet it’s horrible news’
Space you scary