[1stop]

being knocked out is related to the brain hitting the walls of the skull, it has very little to do with what caused that. Slap, Fist, head-butt, concrete, car crash etc.

But I was responding to the claim slapping is equivalent to punching.

[aResponder52]

Depends on the goal. You're right about it being less likely to break a bone (on the target) or cause bleeding (again, on the target), but a solid slap will cause similar secondary impacts (brain hitting the skull)

I'll take a KO after some body shots and two working hands over a bloodied up opponent and a broken hand. There are much better tools to use against a skull, like elbows (less delicate than hands), but you need to account for range and movement.

[1stop]

You are arguing hypothetical outcomes, I'm arguing applied force.

We are kind of talking past each other.

[aResponder52]

Just so we're talking about the same kind of slap. If I had to guess, and I can only guess at this point, you're thinking... like... a slap, a swing with an arm.

I'm talking more like an open handed punch, complete with torso rotation and a pivot. Like a hook, just no fist.

oh, oh, got another one.

Look into the impulse of the strike, and the pressure area. Here, you're going to see a big difference, in favor of your position.

You'll have the same amount of force, probably with a significant increase in the speed that force transmits into the struck area. You're right. Past a certain point, though, someone doesn't get /more/ unconscious.

And, to anticipate your possible response, yes, they can end up /more/ unconscious to the point of death, but, cement does a much better job of that than any human body part.

[aResponder52]

No sir. Been slapped, been punched, and done both. I'm talking anecdotal evidence, you're talking engineering.