So it's not really a surprise to see that walking Dunning-Kruger effect-man, Michael Egnor, claiming that humans can't be apes because "Human beings have mental powers that include the material mental powers of animals but in addition entail a profoundly different kind of thinking" and "Human beings think abstractly, and nonhuman animals do not".
I'm really curious to know how Dr. Egnor knows with certainty that nonhuman animals cannot think abstractly. I guess he is just egnoring all the research that suggests just the opposite. It's not like this is hidden stuff; Egnor could read, for example, the books of Dutch primatologist Frans de Waal.
Maybe not all neurosurgeons are this batshit loony. After all, another thing that Carson and Egnor have in common is that they are both creationists. Maybe that's the real problem. Maybe you have to be immersed in jeebus-juice to believe, like Egnor does, that "Human rationality is different because it is immaterial." I guess our thinking powers are just magic; all that neurocircuitry is just there for show.