Flying Crane
Sr. Grandmaster
This is not worth debating.That would not be an agnostic stance. By your assumption there, nobody can ever change their minds. If we go by the way agnostic is commonly used, he has decided he doesn't know and has accepted that the answer may be unknowable. That doesn't mean he'll reject evidence of good Aikido, but that he'll be skeptical of it - which we should all be skeptical when reviewing any MA. That skeptical analysis is what lets us learn from other styles.