I pushed send before noting my comments:

1. Point by Mike that it is obvious human beings are different. Response: That may be, but the question is whether conceptual thought is an immaterial power and what difference that makes?
2. Question by Mike: Why assume there is no material basis for conceptual thought? Response: Adler doesn’t assume that and in fact assumes the opposite, that the brain is a necessary but not sufficient condition for conceptual thought.
3. Comment by Jon that we don’t need a radical difference in kind. Response: Without that, what is the basis for treating animals differently or objecting to humans with superior intelligence subjugating those with inferior intelligence?
4. Comments from Carl, Steve, and another participant: Having conceptual thought is just the way we are. Response: I don’t think that addresses the issues Adler raises.