00:00What if the universe isn't silent because aliens are rare?
00:03What if it's silent because the loud ones didn't survive?
00:07Yeah, that's where the Berserker hypothesis gets uncomfortable.
00:10It asks a question nobody really wants to sit with.
00:13What if a long time ago, some civilization built machines that could copy themselves?
00:19Not friendly probes.
00:20Not little explorers.
00:22Machines designed to find life and remove it.
00:24And if those machines are still out there,
00:26then every radio signal, every message, every hello, becomes a flare in the dark.
00:33Now, to be clear, we have no proof this is real.
00:36But that doesn't make the silence easier to explain, does it?
00:40Because if even one machine could spread from star to star,
00:44how many civilizations would learn the same rule?
00:46Don't speak.
00:47Don't shine.
00:48Don't answer.
00:49So here's the question.
00:50If something is listening out there,
00:53should humanity keep shouting into space?
00:55Follow for the next cosmic threat.
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