Norman Wilberger has some interesting/controversial views on this matter. Here is a link to his YouTube channel, where he has posted many lectures on subjects

Norman Wilberger has some interesting/controversial views on this matter. Here is a link to his YouTube channel, where he has posted many lectures on subjects through his viewpoint: https://www.youtube.com/user/njwildberger https://www.youtube.com/user/njwildberger I will say, that he is viewed as a pretty notorious crank. Especially due to his views on finitsm. But I feel like his lectures on rational trigonometry are really interesting nonetheless.