Not all posters on PF are "specialists" (in the sense of being scientists actively engaged in research). I'm not. However, I and the other people who are trying to correct you have taken the time to build an understanding of what the science on the topic of this discussion actually says, by working through textbooks and peer-reviewed papers instead of reading pop science books. A pop science book is not a valid source for learning science, even if it's written by a scientist. So if on other forums you are used to people quoting pop science books as though that gave them actual knowledge of the science, I guess PF is not like other forums. But our rules are what they are and we have them for good reasons.I hadn't realised I was arguing with specialists on Physics Forums: the typical forum is full of non-specialists like myself, quoting the supposed specialists who write books or articles on their given subjects and discussing from there. So, that's what I thought was happening here.
That doesn't mean it's ok to use pop science books as sources here. It isn't.I don't have access to textbooks at this time.