I'm wary of "experts". Some of them are owned by the universities, corporations and politicians who pay their wages. Some of them are self-appointed. Some of them have read a lot of old books and not that many new ones- or, indeed, vice versa. Some of them are opinionated and stubborn and set in their ways. Some of them are dogmatists and trying to sell you a line. All of them carry baggage.
Knowing a lot about a subject isn't the same as knowing the truth about it.
Knowing a lot about a subject isn't the same as knowing the truth about it.