I spend a lot of time in the company of computers. I'll happily profess that I know a thing or two about how they work, and then more often than not will regret doing so because whoever's on the end of my professing will immediately ask me to fix the problem they've got with their wireless router. At this point I will try to move the conversation on to on area in which I like to think I'm even more at home, popular culture. As long as they then don't start going on about Truffaut films (not seen any) or…