The After On Podcast
The After On Podcast
Rob Reid
8: Fermi's Paradox (or, where are all the aliens?) | Stephen Webb
1 hour 50 minutes Posted Sep 26, 2017 at 6:43 am.
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Our universe’s vastness and age has given alien intelligence ample space and time in which to arise. Why can we detect no sign of it? 

This is actually a momentous and scientifically serious question. Yes, really! With British astronomer Stephen Webb.