Yeah definitely I was thinking about him while driving home today. In the book Masters of Doom you get a good sense for how much time he spent thinking and programming out ideas he came up in what seems like total-isolation. There wasn't Internet or books on the subject available at the time because it didn't exist yet. In the Graphics Programming Black Book there are also anecdotes by Abrash that give you a sense for what kind of solitary genius this guy has.

Donald Knuth.

I'm pretty sure "Satoshi Nakamoto" is 2-3 people.

Out of how many programmers in the world, ever? They're basically statistical noise against the backdrop of all coders everywhere.

As a sidenote, I'd put Grace Hopper up there instead of DHH, and Dennis Ritchie and Ken Thomopson seem to be missing. ; )