Self -Reference Proof :-)

Totally informal and very simple...

Consider an entity that we will call self. To do so we are distinguishing it from other entities which are not-self. If there was only this entity then could we call it self?

Note: "Self" is relative not absolute since all entities have a "self" reference... which is unique for each entity.

The problem with the construction of "self" then is that it then depends upon other non-self entities for its construction.

Thus self would reference bioth itself and other entities and so not be self referential.

The original insight was this. That self reference is impossible intrinsically - it can only be done from the outside and so is constructed upon non-self. Thus no "self" can be absolute. This was the argument years ago against anything being True. True means self-true which is then impossible.