This question doesn't make much sense. Inherent in the syntax is the supposition that the two, the individual , and the outer world, are seperate. If that were possible there would be a demarkation between the two. Also inherent in the syntax is the supposition that being two dispartate objects, both rely on the other for existence. The problem lies in the definitions, and the paradigm assigned to each.

In reality the individual is part of the outer world, and vice versa. And being unified neither requires the other to exist.

The question is akin to the "tree falling in the forrest, and no one hears it fall." Does it make a sound? Again, the definition of sound is the answer, not the hearing, although most people will latch on to the "hearing". Sound is movement of energy through a medium in discrete packets of compression and rareification. If this occurs there is sound, it is not necessary for the energy to be received and interpreted to qualify. A further example would be to say that an idea didn't exist until it was thought . Not so.