It is precisely because their advocacy for metaphysical idealism is unusual for people with their academic qualifications that they are worth mentioning, and wh

It is precisely because their advocacy for metaphysical idealism is unusual for people with their academic qualifications that they are worth mentioning, and why its worthwhile to listen to them explain their positions at length. Appeal to authority is where you present a person's status or credentials as primary evidence that their argument is correct. I've done no such thing here.