Trees

When I was on the bus home from school one day, I was probably 8 or 9 years old, someone asked me a question. It was a stupid question, but still, a question nonetheless; "If a tree falls in the woods and no one hears it, did the tree really fall?" Well, it's obvious, the answer is no.

Do you even realize that you've fallen asleep until you're awake?

Perception is all that really matters and you can never really be certain of what you know until, you actually know. The only fallen trees that we can be certain, are in fact, fallen are the ones we find at foot. And, even then are we sure they weren't made that way?