What makes sex online far more compelling than any shrink-wrapped smut [is] instant gratification in endless variety—you never get to the end of the magazine and have to start looking at the same pictures again. With old porn, once you view it, you've consumed it. You've chewed the flavor out of the gum. This can't be done on the Net. The gum never runs out of flavor. A new piece of flesh waits behind every old one, and expectation bids you to go further. Much further. Because as long as there's more to come, you'll keep coming. This is all so new. No stimulus like this ever existed before.