Enrico Fermi posed to his colleagues in 1950 that if aliens exist, where the heck are they? The Fermi paradox is a conflict between arguments of scale and probability that seem to favor intelligent life being common in the universe and a total lack of evidence of intelligent life having ever arisen anywhere else. Drew has been pondering this pseudoparadox since he was a science-interested young person devouring Sci-Fi novels and films, and as an adult he's been able to explore more of both the stats that have gone into the probability of ET life and the filters that life has to pass through into continued existence. The result is his structuring a wonderfully interesting dialogue about the existence of non-Earth-based intelligent life and why we may not have seen it yet. 

The Street Wizard's Apprentice from Muscular Clown

Competition Kitchen from The Nerdologues