A black screen. The sound of helicopter blades cutting the air. Before John Mills had spoken a word, the audience was already leaning forward.

The Hero's Journey, Hollywood templates, three-act maps: useful guides, dangerous masters. A note on how to use story structures without being used by them.

He rehearsed the whole talk, every day, on a treadmill. Presence, we learned, is not arrived at by thought — it is arrived at by training.

We rehearsed the talk dozens of times. We had laid out the problem, the stakes, the tension — and never told the audience what we were actually solving.

Five minutes on the TED stage. We thought it cruel — until we understood it was a gift.