Slack vs Taught
You can only really exert a sprint-effort at anything if you come from a place of rest. A boxer is completely relaxed before striking. Brilliant ideas don’t come from extended periods of mild focus, but rather all at once in a burst, typically from a relaxed state. Type II muscle fibers (fast twitch) can only sustain a short burst of energy all at once, and to deliver 100% of that burst they have to start fully relaxed....