Sam Williams wrote:
The real reason for everything being in your center comes from the 2 handed Katana. Center cuts were the strongest.
The sword is not the reason why we have power along our centerline. The reason why we hold the sword the way we do is because that is where our centerline is, not that our centerline is there because we hold a sword.....you have the cause and effect backwards.
And no matter what martial art you study, centerline is important and that is where efficient power is generated, even in arts that do not come from the sword. So obviously, the sword is not the cause.
Yes, I know a lot of aikido and jujutsu comes from sword movements.