From the Orion’s Arm Authors’ Page:

I’m Bill Ernoehazy, an emergency medicine specialist in Jacksonville Florida and environs. I’m fannish enough to be invited to speak at a couple of cons a year — medicine in and of space (I was once a NASA/Univ of Florida Physician Affiliate), martial arts as they’re portrayed in genre fiction (I teach Elizabethan rapier and knifework), and punditry on futuristic developments. I keep a delighted eye on transhumanist, nanotechnological, and extropian groups and authors, though I often wonder how much of the unbridled optimism relies on dubiousine and unobtanium. On the OTHER hand, I can get pessimism all over the place, eh?

You may reach Bill here.