I suspect many within the academic studies will argue this Triune Brain idea of Paul D. Maclean is now outdated, but I already assumed this would be the case, now that Dr. MacLean is no longer here to argue against new theories. Having seen the three parts, and knowing how they seem true within the self, I don't need academics to argue their case, considering none of the academics will have walked the path of total self-denial. They wouldn't be academics otherwise!