(>|<) and (<|>) are universally accepted and totally horrible.
Mentioned in the show:
Imaginary Worlds Podcast
Photos of Ben’s coffee table, with the sanding dust photo included
The Physics Girl’s presentation of the boat-rock problem
XKCD 1867, an oddly on-topic comic that came out two days after we recorded this.
Priming is the effect that can keep you from seeing ambiguous situations as anything but your original impression.
The Underwave off Kanagawa
Paternoster elevators on Wikipedia
Frank Drake’s AMA