Thanks RoosterRedux. I’ve never been convinced of this, but unlike some in that field, Mack always struck me as a thorough and honest thinker.
I haven't drawn any final conclusions either.
I knew Mack from his writings to be an intellectually honest searcher for the truth...he was also unsure of what was going on.
That said, he concluded that something was going on. Something real was traumatizing these folks who were his patients.