Unfortunately, it often sounds as though the best ideas are those with the least human involvement: “Don’t think about me using my data, think about a really smart really powerful computer using my data with some interesting apps,” says Sir Tim. “My machine talking to a hospital, saying ‘I don’t know if you know but he’s not doing so much exercise - is that ok?’” He emphasises the new trend for apps and wearable technologies that encourage exercise, even seek to influence mood and put the two together to suggest users might feel happier if they went for a run. “Keeping lifestyle, consumption of bad things in check, those things will be important,” he says. “Maybe it’s just London and Massachusetts and California, but people seem to be eating much smarter. I noticed when we were out walking as a family the kid carrying the GPS was the first to the top – none of this' are we there yet' because you can see you’re 58.3% there yet.”