I didn't watch all the video, but have seen plenty on the subject. It's mostly related to the elongated skulls, or some call them "star people". Some say it's natural, some say their skulls were shaped that way. I am sure that it gets into the giants portion of it to, or where angels mated with man. I think there was a strange time in history, there are bones still dug up where it makes some people seem like giants. Tough to say. I think the giants existed. I don't know if it was a mutated gene or not.