Those who truly believe that machines will eventually push the human race into extinction may need to wait a bit longer before the computerized overlords rule. The Polaris poker playing program went into battle with a pro poker player at the AAAI 2007 conference and lost. AIs and other machines may hang their heads low today, but I am sure more advanced methods for playing poker will evolve in the computer science world. However, my money is still on the human race. Once my robotic vacuum cleaner begins to vacuum better than I do, then I will be concerned.