What is the proof that superimmortality is not a supernatural theory

Superimmortality is based on science. The science of superimmortality is based on physical aspects of reality and how it produces consciousness. It has no supernatural concepts that it needs to have or produce an understanding of consciousness like souls, spirits, bodless minds, bodless afterlife, mind substance, psychic abilities, extrasensory perception, telekinesis, ghosts, poltergeists, reincarnation, faith healing, human auras, or other supernatural or paranormal ideas religious spirituality occultism or spiritualism

Superimmortality make these assumptions, none of which are supernatural at all.

1. That the functioning of the brain produces consciousness.
2. The brain can be structured in an extremely large amount of ways
3. The brain given any starting structure, can function in an extremely large amount of different ways.
4. There can be an extremely large amount of individual very small changes between one structure and another, such as the slight movement of only one subatomic particle in the whole body.
5. The environment can and does influence how the brain functions over time.
6. The stimulation from the various senses can and do effect how the brain functions over time.
7. It is not supernatural to name physical processes with well defined scientific names such as the structure and functioning of the brain over its life time as a neuropath. Or the consciousness that a body produces over its life time as the awarepath.
8. It is not supernatural to say that when a specific physapath is being produced by a body an awarepath is also being produced if the body is producing a consciousness.
9. It is not supernatural to have a term that ties together consciousnesses from different times in the life time of a person called Ixperiencitness, with this intuitive definition that if I experience a consciousness in the past, present, or future it has my ixperiencitness, if I do not experience the conscious it does not have may ixperiencitness.
10. Logically, where an identical functioning replica of a person is not the same person as the original, it is not a logical fallacy to say that two different people can produce the same consciousness and ixperiencitness by producing the same structure and functioning of their bodies.
11. It is not supernatural to predict that there are such small changes that can occur in the structure and functioning of the body that if such differences occurred they would still produce the same consciousness and ixperiencitness.
12. At any point along the physapath there can be numerous differences from external sources like from the senses or the environment that can change the the way the body functions.