I disagree, Lynn. If all techniques trained aiki, then there wouldn't be such a commentary going on by all of us who have gone to meet Dan, Mike, Rob, or Ark. You can't get aiki by focusing on the subtleties of connecting, blending, or taking balance. You can't get aiki by training techniques. Being soft and being relaxed isn't going to get you aiki.
In your opinion.... Mark.
My opinion would be "of course you can."
I explained how to begin...with a very simple excercise.
Most people understand unbendable arm...though it is often overlooked for more complicated ways of doing the same thing.