Why did God invent time?

I love economists. Here's a snnipet from a long discussion:

"Nick, let me ask you this.

Suppose the government passed a law that said as soon as anyone received a dollar, they must immediately use that dollar to purchase something that isn't a dollar.

In that case, would recessions be impossible?

Posted by: rsj | August 25, 2011 at 03:34 PM

rsj: short answer "yes". Long answer "no", because:

1. You can't make it immediate. That would make velocity infinite. Can't be done.

2. One of the whole points of wanting to use money anyway is the same reason we hold inventories: because it's just too damn hard to do everything at once. (That's why God invented time)."

From http://worthwhile.typepad.com/worthwhil ... omena.html