What If?

A new Tuesdays-only sorta-comic from Randall Munroe of xkcd fame.

"Answering your hypothetical questions with physics, every Tuesday."

How did I miss this until six weeks in?  So far, there have been questions and answers regarding:
Relativistic Baseball
SAT Guessing
Yoda
A Mole of Moles
Robot Apocalypse
and
Glass Half Empty

One more reason to love Tuesdays.