Science is, rightly, searching for drugs to arrest ageing or to slow the advance of dementia. But the evidence suggests that many of the most powerful factors determining how you age come from what you do, and what you do with others: whether you work, whether you play music, whether you have regular visitors.

Courses can, and should, incorporate the excitement and fun of programming games, apps or even real digital devices.

In every capitalist economy there are anti-capitalist movements, activists, and even political parties; in a way, that there are no longer anti-democratic movements, activists, and parties.

The longer you commute the less happy you're likely to be.

Deeper fulfilment is rather different from the happiness of seeing a good film or watching your team win at football, and it doesn't come at the push of a button.

Teenagers learn best by doing things, they learn best in teams and they learn best by doing things for real - all the opposite of what mainstream schooling actually does.

Spreading an idea is hard work.