[metroidfan832]

A very relevant rebuttal from page 91/92:

>Because you get really nice feedback. When you write a graphics algorithm, it draws a picture for you. While data can be re- warding in its own way, in general the human species is wired to re- spond much more strongly to visual things and things that have to be interpreted from symbols. So there’s something fundamental there why it’s a neat thing. But we do get to work on a whole lot of areas. I enjoy all aspects of it, but games have always been one place where there are challenging things and it has its own reward at the end, aside from the problem itself.