Carmack is the lead programmer behind the successful games Wolfenstein 3d, Doom and Quake. A QuakeFinger update on February 6, 1998:
"Just got back from the Q2 wrap party in vegas that Activision threw for us.
"Having a reasonable grounding in statistics and probability and no belief in luck, fate, karma, or god(s), the only casino game that interests me is blackjack.
"Playing blackjack properly is a test of personal discipline. It takes a small amount of skill to know the right plays and count the cards, but the hard part is making yourself consistantly behave like a robot, rather than succumbing to your "gut instincts"."