The thing about the Internet is that you can write something... for a very narrow audience and make a living at it.

I think the really cool and compelling thing about math and physics is that it opens up entry to all these hypotheticals - or at least, it gives you the language to talk about them. But at the same time, if a scenario is completely disconnected from reality, it's not all that interesting.

It's tempting to just write a comic called 'Everyone Mail Randall Munroe Twenty Bucks' - maybe it would work, and I could just close down the 'xkcd' store and sit on a beach and draw pictures and make snarky Reddit posts for the rest of my life.

I don't have hard numbers about this, but the impression I get is that the amount of eyeballs you get from being on the humor shelf at Barnes & Noble - it is almost insignificant.

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.

One of the things I've learned with doing 'xkcd' is that you sort of give people, 'Here's the thing, and here's the button you can press to get another thing.' Sometimes that can be more easy to digest than, 'Here's a long page of things.'