This would be the meat of the topic then, Belief itself, where we discuss the incidentals. Someone else pointed out earlier that the theory would be something like the Matrix - each person's reality is made for just themselves. If you know of something than you believe the idea exists, leading to the possibility of its manifestation in the world. To use the example of gravity again: If someone doesn't know of it's existence (impossible yes I know) then they don't believe in the idea. If you told this person to jump of a building then obviously they will be introduced to the idea of gravity - painfully albeit - and then this will have become reality. Why, though, would you attempt to jump off of a building suggesting you don't believe in gravity when the very purpose of attempting the jump indicates that you doubt your own veracity?
Use this as another example. Place a board on the floor and walk across it. Easy, right? Place this same board twenty stories up between two buildings and walk across it. Unless you are completely fearless, which I have no doubt many are, you will wable as you walk across this board. The idea of falling is real to you. Reason with yourself now. You've just walked across this same board on the floor and managed perfectly fine.
I've seen it time and again at stage hypnotism shows when the candidate is subjected to acts he/she would not normally perform. Because the Hypnotist was able to make the idea real to their subconciousness, it was adopted as fact and became real to the person. I've seen them suggest to the candidate that they should have a seat in an invisible chair - which they do and manage just fine. To the audience the chair does not exist - but for the candidate it is as real as the sun is bright.
This is not hoaky. Brilliant minds such as Benjamin Franklin have looked into the effects of hypnotism, lending it credibility. For the past hundred years at least, performers have been showing its effects as well. As long as it is real to you, then you believe it exists - to a point.
