@SteveWeigand It may also be the case that it means different things based on who you ask. It is my understanding is that this is the idea of flow possibly coupled with triggering flow. I look forward to learning more from your answer.

Too bad that you're not asking about weapons. I think it's interesting to see the degree by which the playing field gets leveled per weapon matchup.

@FergusMacGavin It's in my answer above. Read closely and for comprehension. I realize this requires a change in how you think, which can take a while and be very difficult. I even give you some things to try to help get you there.

@FergusMacGavin There is no perfect move, only perfect for the situation. It's about what you do under which conditions.

@FergusMacGavin I introduced some philosophy here, but let me summarize. There is no perfect move, only perfect for the situation. You cannot eliminate weakness, only move it somewhere else. Martial Arts are about choosing a good move at the right time.

@Michael It's been my experience that 2-handed weapons act very much as a 1st class lever. The "forward" hand is the fulcrum, but weapons are not really using them for mechanical advantage. 2 handed weapons are so more for reach, bringing more muscles into play, and getting that center of percussion going fast. It's still a point for "how weapons work," IMHO

Hi John! For future reference, being a bit more specific makes for better questions. For example, you could ask about specific aspects of the question. Some examples: Why is it dangerous to execute? Why is it dangerous to be on the receiving end? (... which should be pretty obvious given some cursory research.) Why is it more dangerous from a legal perspective?

@philipklöcking I am just saying "force multiplier" isn't 100% literal. The leverage argument does not mean higher force, it means higher energy. (Per the strain-energy relation, this means more deformation/damage: en.m.wikipedia.org/wiki/Strain_energy) Energy is affected by velocity whereas forces cause a change in velocity. "Force focuser" or "Impact Energy Enhancer" is more accurate but less cool. The same motion can be performed without weapons at the same level of force- but with a weapon more damage occurs. No forces are actually "multiplied."

The broader principle, which is found in many martial arts, is applying force in a way that a joint is weak in.