Tomorrow in io9 I’ll be answering a question about the shape of the universe:
What’s up with the concept of “shape” applied to the universe? How can
something with no practical boundaries have a shape?
I couldn’t, in good conscience, not at least give a shout-out to the awesome Dr. Snuggles-Rusty-XP4 triad that Jeff drew for Chapter 6 of our book. There’s more where that came from!