What are the downsides to suspending scientific accuracy for the purposes of doing Aikido?
I had a similar experience — in Kung fu and Buddhism.
Beliefs are a model of the world: just because a model isn’t phrased in terms of my core beliefs doesn’t mean it has nothing to teach me.
In the case of Kung fu and Buddhism, I don’t believe I would understand things as well as I do (physics, physiology, neurology) without having taken the time to understand what those other models were trying to express about the world.
To use an analogy: just because I have an irresolvable dependency conflict with a new piece of software doesn’t mean it has nothing to teach me about software and programming.
I can’t — so I found it necessary to dig into the old program and port the concepts.
I would argue that more people should do that, even when they don’t immediately understand the old model well enough to port.
Both in software and martial arts.
My solution to encountering outdated beliefs with great utility was to try and update them — to retell Kung fu (and Buddhism) in that new world view. Buddhism has a maxim to keep what’s useful and discard the rest.
What does “ki” mean in physics?
I think it’s more than esoteric luggage, but a class of physics equations which are nasty to write down because they’re complex differential equations — and the numerics don’t matter to the practice, just the behavior of the system.
So you give a name to that behavior and model it experimentally, describe it euphemistically, etc.
I get spending the time to learn multiple models and translate between them isn’t everyone’s idea of fun, though. Those people reasonably make different choices than I did.