Correct, I am ignorant and I’ll gladly own that. But frankly you sound like equal parts thoroughpissed and therapist.Well you don't know shit about this therapy so you're showing your ignorance with that comment. I have personally treated many people successfully with vertigo and concussions. For your information, the therapy is extremely scientific and intensely mechanical. It takes years of study and effort and practice to become competent. It is by far the most difficult physical therapy skill to learn.