Why haven’t we found aliens yet? From the Fermi Paradox to the Great Filter, the Dark Forest theory, rare Earth, simulation theory, and more — here’s every major explanation for why the universe seems so silent.

00:00 The Fermi Paradox.
00:54 The Great Filter.
01:45 The Rare Earth Hypothesis.
02:40 The Dark Forest Theory.
03:36 The Zoo Hypothesis.
04:34 The Self-Destruction Filter.
05:35 The Simulation Hypothesis.
06:33 The Communication Gap.
07:35 The Interstellar Distance Problem.
08:35 The Short Window Problem.
09:32 The Planetarium Hypothesis.
10:30 The Transcension Hypothesis