I've watched several of this guy's videos about comparing different types and their functions. I don't find him any different than most of the comments I have read or heard about the functions. Most people overgeneralize. I don't take offence to any of it. Usually there's a grain of truth but people embellish them with some descriptions to explain that often stretch a little too far for describing a whole group of people that are basically different even if in some ways similar. Some of it is pretty funny actually. You can't take any of this stuff too seriously but it can be interesting nonetheless.
