"Even Cartesian coordinates are a hack which happen to provide a simple construction of 3-space, but wind up making most of 3-space's fundamental properties appear to be spooky coincidences rather than being at the center of how it works. When I say this usually people have no idea what I'm talking about, but when people play with my puzzles the intuition gets across."
"For specifying puzzle rings, I generally use ascii art
"Programmers used to all be widely diversified, but that's becoming less so since we now have clear specialties in programming and languages which have meaningful differences instead of just being worse versions of C."
"What I'd really like to see is for wireless router manufacturers to have UPnP port forwarding turned on by default. Most of them have it built but turned off by default, for no apparent reason.""