I've read several of Gregg Braden's books, and I think he is on to something. Theoretically, I do believe that we create our reality through our beliefs.
At the same time, I think that we are all in different places where those beliefs are concerned, because of our limited perspectives, and that we influence, and are influenced by, the beliefs of others.
Change occurs when a critical mass of society or the group comes to believe in the possibility of a new and different paradigm.
Ann