This is a thread on the philosophical viewpoint of solipsism. Solipsism is the doctrine that the only thing that realy exists is one's own mind. All other things that are known to exist (by others), are declared to have no existence at all. For a real solipsist, all of outside reality (outside of one's own mind) are just projections, thoughts, images, etc, but do not describe a real existing outside reality, that exists independend of one's mind. So far, no real philosopher of person has ever declared him/herself to be a solipsist, there exists no debating clubs for solipsist. The reason for that is that for a solipsist it's no use to ever meet someone else and debate anything, cause all of outside reality, including other persons/minds are declared non-existence either. Nevertheless, solipsism is a very common viewpoint, and is still practised all around the globe in various forms. This is because it is hiding it's content and the only outside form of it is better known as religion. In this form the mind has been transformed into an absolute form, namely God. God is for a solipists the substitution for what other people call the outside material reality. Some of them do recognize a material reality, but not in the way materialism pictures it (as independend of the mind). In the viewpoint of solipsist material existence (if such a material existence in their viewpoint exists at all) is in last instance dependend on the existence of God. God is in this viewpoint defined as the ultimate or final cause of the material world. This is a clear distinction with the philosophy of materialism, in which matter is the primary substance, which is neither created or destroyed, but is in eternal motion/change, and mind is a secondary consequence of the material world itself.