Ten years ago, death grabbed me by the throat. I was saved by the system – and a stranger

Ten is a foundation of mathematics, a cornerstone of the decimal system. It suggests completion, but also a building block.

‘I lost my leg and thought I’d never walk again – now I’m going to space’

‘When I lost my leg, I didn’t think living some adventures was possible anymore,’ John says. ‘To do that sort of fun ...