The 5,000-Year Longevity Window and the Fermi Paradox

To the point

A plausible idea is that advanced civilizations may only last about 5,000 years, so even though we can listen to signals spanning roughly 100,000 years of galactic history, we should have detected them if they endured longer; the silence could therefore reflect universal short lifespans driven by threats like asteroid impacts, volcanic activity, climate change, pandemics, nuclear war, or AI.