A single punch lands. The lights go out. Why?

Depends. Pivoting the foot. Twisting of the hip. Snapping the punch out fast bringing it back fast. Stepping into the shot. Sometimes planting the feet. Timing. Strength. If you've done good conditioning and weight work. Hitting them on the right spot. Gitting them when they can't see it coming or expecting it. All these things come into play.

 

Ben Tackie landed a last round shot that knocked out his opponent. He lost every round or close to it. One punch see you later.

 

Twist, pivot and shout, that's awesome.

When it comes to power, the point of impact is the crucial and critical part of the process wouldn't you agree?

 

People on forums who think they know how to create power punchers should go to gyms and let coaches and long time boxing industry in on their knowledge.

 

hamed had massive legs for his weight. That had something to do with it.

 

Absolutely it does, along with the twists and pivots.

 

You forget energy transfer. Some people have a body that transfer more energy in a shorter time. Knockout power is about impulsion, not total force transfer. The opposite of pushing. Of course the ability to generate power is important, but the ability to transfer it is as much, and this is determined. Look at Foreman KOing Moorer