I have a photographic memory. I only have to see something once, and I never forget it. It’s my party piece. It’s what I always do for school talent shows. I get people from the audience to call out names, dates, strings of numbers, bits of poetry. I write them all on the whiteboard, look at it once, then I get them blindfold me and recite them all back. It’s something I’ve been able to do all m…