The universe is probably littered with the one-planet graves of cultures which made the sensible economic decision that there's no good reason to go into space-each discovered, studied, and remembered by the ones who made the irrational decision.

I think the comic that's gotten me the most feedback is actually the one about the stoplights. Noticing when the stoplights are in sync, or calculating the length of your strides between floor tiles - normal people notice that kind of stuff, but a certain kind of person will do some calculations.

I read comics and I did science, and never really put them together until I accidentally found myself in the middle of one.

I learned very early on in life that not everyone wants to hear every fact in the world, even if you want to tell them everything you've ever read.

The scholarly authorities on freezing to death seem to be, unsurprisingly, Canadians.

Take wrong turns. Talk to strangers. Open unmarked doors. And if you see a group of people in a field, go find out what they are doing. Do things without always knowing how they'll turn out. You're curious and smart and bored, and all you see is the choice between working hard and slacking off. There are so many adventures that you miss because you're waiting to think of a plan. To find them, look for tiny interesting choices. And remember that you are always making up the future as you go.

Once I got married, I started working from an office. I found that having somewhere to go that isn't my house is mentally helpful: 'This is the place where I answer email and write blog posts,' and 'over there is the place where I do the dishes.