One more reaction I nad to that article about "What is Play For?"...the author covers everything in depth except the possibility that play might be for fun. That the more we play, the better we get at having, creating, being fun.

I wonder if we could teach a computer to have fun, how it would impact its overall growth as a thinking machine.

I was also thinking about what would happen to a person who was born without the ability to experience fun. How long would it survive? And why would it want to?