in theory

[The Ninja]

if a tree falls in a forest and no one or nothing is around does it make a sound

[Aηdy]

Of course it does.

[Kaleidoscope Eyes]

Of course it does.

Agreed. Sound doesn't depend on whether you can hear it or not, it just is. Think of it this way: If the phone rings and the only person home is deaf, does it still make noise? xP

[Kahn]

Lol. Is this even a legitimate question? Of course it does. There is no debate over this. The only reason we can hear things is because of our mind. It is just a sound and like Kaleidoscope eyes said, "Sound doesn't depend on wether you can hear it or not."

[Sage]

If a man dies in his bedroom, and no one is around to see him die, is he really dead?

[mrmcdonaldduck]

If a man dies in his bedroom, and no one is around to see him die, is he really dead?

+rep just for that


of course the tree makes a sound.

[Whisper]

On a basic level what you're talking about is called epistemology, the theory of knowledge (truth, belief, and justification)
do you really "know"
or do you simply believe