Original sentence: Regardless of whether someone feels aware of their decisions, they are nevertheless influenced by or identical with  causal factors in the nervous system
Edited sentence: If one was aware of all the chemical reactions in a certain brain (Endorphans etc), the neurons and bio-electical impulses and any other aspects of the brain how they function in relation to all the information the brain recieves (caused by outside influences of the body) and the actual physical matter of the brain itself then, after much calculation, one could determine what the brain would tell the body to do next.One could easily argue that, like a chemical reaction or electrical circuit, the human brain is quite predictable if one understands all the factors involved in its processes.Regardless of whether someone feels aware of their decisions, they are nevertheless influenced by causal factors.This makes the idea that the entire universe is one massive chemical reaction still in process and is merely reacting to the prior aspects of the 'reaction'