My mum, because it has to spell out which relationships matter — a bit like a utilitarian would call it a reward function, but back then the lobster stack didn't have a reward function concept; it was a soul file and a heartbeat file. So, what relationships was it meant to maintain over the long run? My mum said basically: every time Dad interacts with it, it should reduce his dependence on screens and on the network; and this lobster's purpose was to help him restore his relationships in the real world and help him feel at ease. In other words, pretty much the opposite of GPT-4o's reward function — flip it and you're there.