But Charles wasn't just wasting his time, he was thinking about the problem while playing games! At least that's my interpretation.

I've learnt that I concentrate wonderfully and solve problems while walking. I know other people see just a guy walking in an absent-minded way, but I'm working!

For me Charles and CharlesPrime are exactly the same example, they just do the same thing in different ways. If it isn't Space Invaders then it will be another thing, they both need time to think. Otherwise you are hiring code monkeys.