Sing

It's amazing how the cells in our bodies replace themselves. Like skin. It replaces itself every few months or so. Not sure about brain cells. Nonetheless I think there is ample evidence to suggest that a brain is capable of rewiring itself - either willfully or through encouragement.

For example, completely restrained, balls situated within a machine vise, lever moved a quarter turn for each time I refused to rebuke the former statement, there is a strong possibility I could be completely convinced my brain was not capable of rewiring itself.