After assembly complete, when we have a larger crew on orbit, a more complex vehicle, more laboratories and more robot arms, maybe we'll have room for specialists. But right now we don't. ↗
Whenever I felt happy about having discovered something, the first encounter, not only with the public, with other musicians, with specialists, etc, was that they rejected it. ↗
Part of the problem is how little we understand about the ultimate betrayal of the body when it rebels against itself. You always worry about charlatans. We found that specialists did not know as much as we thought. ↗
It's rather like attending a university seminar where you are talking to a few gifted specialists who deliver a paper to an audience of their peers. That's one way of making music. ↗
And, of course, method is very important as is a high-quality specialist (trainer) working with you to keep you going in the right direction for your improvement and to help create results. ↗