Recently science and science fiction writer Matt Williams has been writing a series at Universe Today on why the extraterrestrial intelligences never show up (the Fermi Paradox or Great Filter).

Last week, we looked at the hypothesis that we are living in an ET’s simulation (In their world, we don’t really exist.)

This week, let’s look at the Berserker hypothesis, the fifth in Williams’s series (counting down): The hypothesis suggests that we haven’t heard from alien civilizations because they’ve been wiped out by their own killer robots. Well, if robotics ran amok…

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