Conor McGregor toys with Paulie Malinaggi in sparring?

[TitoFan]

It isn't only about force. It is also distribution of force. It's why you can lay on a bed of nails but you can't lay on one nail.

You're right in total force vs distribution of force.
However, when assessing the effects of a punch to the chin on the opponent's brain, it's really only about total force.

But isn't this about KO's? Moving someone's brain is only one of many ways to KO someone. From my years of watching I'd say submitting is more common than people being asleep. People accepting the KO. It's a KO just the same.

Seems to me the interminable argument a few pages back was about the type of KO where "Johnny says night-night".

Using that as the basis, then it's just force we're contending with, which when striking a stationary object of a certain mass, will impart an acceleration which in turn will cause the resulting relative motion between brain and cranial cavity.

If anything, a more concentrated force is more likely to break bones (facial and hand). But the total force being practically the same with a boxing glove as with an MMA glove, means the effect on the opponent's brain will be practically the same.