Imagine that you’re standing on a footbridge that swings a thousand feet above the valley floor. The bridge is missing two slats,
and you must leap a two-foot gap to move ahead. You hesitate as you look down. You’re afraid. The hiker in front has already crossed, and leans forward, his hand outstretched, inviting you to try. “It’ll be fine,” he tells you. Your fear lessens, and your willingness increases. Yes, it’ ll be fine, you tell yourself, and you leap.

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