http://news.ycombinator.com/item?id=773106

The original quote was along the lines of “For program immortality, write games. All other applications stop working after a while, but people rewrite and emulate entire processor architectures just to play a game again.” Of course, he said it better.

Wait, I found it: “if you program and want any longevity to your work, make a game. all else recycles, but people rewrite architectures to keep games alive.”