Watch a good defensive fighter take a clean shot and stay upright, and you are watching physics being played well. The punch that drops someone and the punch that gets absorbed can carry almost the same power. The difference is usually not toughness. It is what the fighter did with the energy in the fraction of a second it arrived. Rolled with it, turned with it, tied up before it could land clean, or got caught flat and ate the whole thing.
That is the quiet truth underneath every striking exchange. You cannot make incoming force disappear. You can only decide where it goes and how fast it gets there. Once you see defense that way, a slipped hook and a ballistic vest start to look like two answers to the same question.
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