"As in fencing, you're only supposed to attack certain parts of the body."
That is lazy writing on Stephenson's part. It is not true of épée fencing, for example. Incidentally the "duel" you refer to took place in the Metaverse, with Hiro ultimately hacking the code to drop a safe on his opponent's head as a finishing move, so it was at least as artificial as fencing, with as much connection to real sword-fighting as a round of Call Of Duty has to real warfare. Yes, I have read Snowcrash.
Ugh épée, proving that the small sword can actually be more pathetic and useless. Though it's not quite as disgusting as the bastard creation that is the fencing "saber". At least the small sword in it's original incarnation was about as lame as the épée or foil is presently and doesn't take the name of a proper combat weapon... not to mention ignore a good century plus of actual saber form.
Never understood dueling on a little strip either, completely nonsensical, may as well just glue your feet to the floor and not move at all.
Have some proper European fencing courtesy of the fine ladies and gentlemen of ARMA
I've done a little Rapier fencing in the Capoferro style, which is way back in the genealogy of modern sport fencing and about as far as I get from proper combat forms. The real root forms of sport fencing lay in the nobleman's "small sword", that is to say the actual style of sword the small sword. This useless insult to steel here.
It's clearly of use only to noblemen and other such useless creatures.