Re: YouTube: Kissomaru Ueshiba in 1993
I'm sure Takahashi Sensei can elaborate/clarify far better than I ever could but I think the key word he used was "his" (the aikido of O'Sensei). I surely don't want to try to emulate or duplicate anyone else's aikido. Maybe though I can pick up/steal some things to help me with my own practice though.
As far as the demo, I agree with Mary. To be able to 'just' move that well at an advanced age is inspiring. I see folks much younger now who are far less mobile.