This conjures up Bishop Berkely and the conundrum of the tree which falls in the middle of the forest. He would say that it does make a sound because even if no one else is present to hear it, God hears it.

There once was a man who said, "God!
I find it exceedingly odd
To think that the tree
Will continue to be
When there's no one about in the Quad."

response:
"Dear Sir:
Your confusion is odd,
For there's always someone in the Quad,
And that's why the tree
Will continue to be:
I shall be there."
Sincerely yours,
God