How about these twists on the old question:
If a tree falls in the forest one foot away from a deaf man, does it still make a sound?
How about leaving a tape recorder there. Nobody is around, but the sound can still be recorded.
If a tree fell in a forest on Schrodinger's Cat, would the cat be alive or dead?
If a forest full of trees fell on a spotted owl, would any loggers notice?
If a tree falls in a forest on a computer, would there be less annoying nodes?
If a tree fell in Everything2 on Nate, would he just de-exist the tree before it existed?