I said that Aikido uses the strength of the attacker back at them but 10 times stronger(estimate). Using Aikido I can probably kill a charging Rhino using it's force right back at it, of course, I'm not going to try it, way to dangerous for any sane person.
I recommend practicing Aikido for every /jp/edo as you are all physically weak, and Aikido is specialized for the weak to defend against the strong.
Aikido does not deflect attacks. It reverses them, and furthermore: Add more force. A reversed 9mm bullet is more like a fucking cannonball made of burning suns of rage. It could easily tear through a tank.
That is the power of Aikido.