[edwest2]

I am quite leery of anything on YouTube. Generally speaking, no standards apply. Anyone can post anything. No standards apply in terms of fact checking and in many cases, no real identities apply. There is a large difference between amateur material and professional. For those who are inexperienced regarding any subject, a presentation with flashy graphics may be accepted as entirely factual, but with no basis for comparison. For example, book reviews regarding aviation history on Amazon very rarely turn out to be from people who know the standard book review format or who even have a background in the particular subject.