Not so clear cut;

"It's quite extraordinary, in that its core message is to do with the wonderful "bluestone quarries" at Rhosyfelin and Carn Goedog -- and in that it demonstrates that MPP is in a complete state of denial about the two peer-reviewed articles in 2015 which questioned every scrap of evidence which he now, yet again, lovingly repeats. He does not cite those two articles, and neither does he mention that there is a bit of a dispute going on........."

https://brian-mountainman.blog[...]-laugh-or-cry-mpps-latest.html