It'll be interesting to see how you feel when you're in your 70's. You may find sport fighting trivial and that Ueshiba's progression is more than enough for you to continue to explore aiki into old age. Wouldn't that be a lark?
Not my meaning. I meant the stuff where he waved at them and they fell down. It stands to reason he retained some power in his old age. Takeda was in his 70's when he did that angry demo at the budokan. Sagawa did a limited freestyle exchange with two olympic judo guys. There are plenty of guys in the Chinese arts that can deliver power in their old age.
I have no interest in arm waving no touch stuff though, it discredits everything good.