Still 5.8 billion years to complete...
...So much for my plan to do 64-stack Towers of Hanoi on my computer...
...That's assuming 100 moves a second, assuming a fast-drawn interface. On the other hand...My computer can do nearly 8,000,000 additions a second if not printing to the screen...
18,446,744,073,709,551,616 / 8,000,000 = 2,305,843,009,213.693,952
2,305,843,009,213.693,952 / 60 = 38,430,716,820.228,232,53~
38,430,716,820.228,232,53~ / 60 = 640,511,947.003,803,875~
640,511,947.003,803,875~ / 24 = 26,687,997.791,825,161,(481~)
26,687,997.791,825,161,(481~) / 365.25 = 1,111,999.907,992,715,061,728,395,061,728,4 years (Approx.), according to my calculator.
Oh well...