The complex nature of its functions means that no two brain injuries are the same.
A person can present with similar injuries, illness or condition to someone else but their recovery rate and degree of disability can bear no relation to the extent of the actual injury to their brain. Its possible that a person with the most catastrophic physical presentation in the beginning can recover in what can only be described as a miraculous way.
Miracles have happened due to sheer bloody mindedness and determination. Relationships have survived and got stronger and injured people have achieved more than even the experts dared to hope they would.
We can’t fix a brain but we can help it to work again.