Sort of, I know that killing an animal by any other means is very
hard.(Read Man Kind? by Clevland Amory.)
I know that the human body is extremely tough and that cutting somebody
takes a good bit of work unless your instruments are really sharp. I
assume that holds true for the living, all my cutting was in dead people.
" Ah, the trocar! Picture a hollow tube, about 18" long, sharp on one
end, with an entrance hole on the other end, and several smaller holes
on the sharp end. It may be used for suction or injection. The trocar is
first inserted (thrust) into the abdominal area at a point about 2"
above the naval and 2" to the left. As the instrument is worked back and
forth in the abdominal cavity it is aspirating as much of the contents
as possible. Fluids, stomach and abdominal contents, small intestinal
contents, large intestine gases and fecal matter, and minced tissue go
into the vacuum line and into the disposal system. "
Been there, done that.
I also know that firearms replaced most other weapons even when they
were new and had a very slow rate of fire.
It takes 10 years to develop a good longbow man and ten hours to
develop a shooter.