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The very fact that you are talking about whether 'a sword' can hack or not something shows how clueless you are. Swords designed for different things are wildly different weapons. You never talk about 'a sword', if you know even something about it.
Besides, you seem under the impression, as I said, that hacking and cutting are the same thing, and that hacking a limb is achieved by (possible multiple) cutting. What about learing at least some basics before lecturing the world?
Nice internet sword autism on display here. I approve.
I did practice Iaido for a year when I was younger, so let me add a little of my own autism.
You are indeed correct, sir. European longswords and Japanese katana are designed for different things.
In Iaido you would do a "curved" fluid motion when cutting. In cutting tests on bamboo targets you would see if you are doing it correctly. If done correctly the sword would cut cleanly through the target. If done wrong (by hacking) it would get stuck.
European long- and broadswords however, were heavier and more durable (movies are lying about this all the time). Their purpose was to penetrate through armor and chainmail.
But I admit I have no knowledge about hema sword techniques to detail this further.