He certainly seems to know a lot about the optics involved. However he was also, for example, suggesting recently that Magic Leap had faked the SLAM tracking in their recent Rolling Stone demo https://www.kguttag.com/2018/01/17/magic-leap-how-rigged-was... https://www.reddit.com/r/magicleap/comments/7r267v/blog_arti... . So I would not take his overall view of Magic Leap as gospel.