People love to pretend, and to watch others pretending. From story-telling to
plays to movies to virtual reality, we keep getting better at making people
feel like they are watching imagined places and events. We also keep getting
better at role-playing, i.e., creating environments where several people can
see what happens when they all pretend they are different people in another
time and place. Eventually such role-playing simulations may get so good that
people will often forget that it is just a simulation.

http://www.transhumanist.com/volume7/simulation.html

If I had all the money I'd spent on drink, I'd spend it on drink.
-- Sir Henry Rawlinson