You can be on that exit point for five minutes, battling all these voices in the head, and all of a sudden, a calmness comes over you, and you realise … it’s good, let’s do it. We used to call that ...

You are standing at the edge of a cliff. In a few moments, you will jump. Once you take that step off solid ground, you will experience a fleeting free fall until—if all goes to plan—the parachute ...