The proof:
1. The man is a writing machine. He puts out more and larger books than most authors put out in double the time.
2. He still finds the time to go to many book signings as well as do a weekly podcast (called Writing Excuses, which is awesome).
3. He's very approachable.
4. When confronted with a starstruck fan who doesn't know what to say (this wasn't me), he's willing to spend extra time with them and even ask "Do you have any questions for me?" (I can tell you that Terry Goodkind is not this kind of author)
5. He's a geek and very much like us.
And for definitive proof, here is Brandon and myself sharing a pass time common amongst our geek peers.
Spoiler:
He trounced me, but I fully expected that.
