A question that I would like for you to ask Prof. Brian Greene (and others like him) is why wouldn't they look into conformal cyclic cosmology?  It seems like anytime someone else's idea  comes along, those scientists who aren't studying that same idea are quick to dismiss the topic by saying "I've not looked at it yet..." while at the same time down playing the idea itself, even if these aren't always new ideas that have  just recently come out. If science is supposed to be about learning through exploration, why wouldn't the best minds make time to study an hypothesis/idea put forth by another great mind?  Worst case scenario, if they did that and it turned out to be a dead end, they could quickly put that to bed, not waste any more resources on it and move on to the next.