As more research is undertaken, our understanding of the brain improves. The early facts are positive when it comes to cannabis as an effective neuroprotective. Could it be that one day we will encourage athletes, soldiers and other people at high risk of head trauma to take a prophylactic dose before engaging in their tasks? Could the very thing we are screening for in drug tests be the thing that will best protect people from more serious brain injury? Could AARP one day be advertising cannabis vitamins for healthy senior living? Stranger things have happened. Stay plastic, my friends.