I think that's a legit question in general Boom when we talk about this issue, but if you read this piece it's pretty clear what happened to Visage was not the natural progression of aging, even with the potential for a disease like Alzheimers.
But, as we talk about the issue of football going forward, I think we're going to have to acknowledge that some brains break easier than others. And I don't think any government body is going to be able to say "Football is too dangerous in its current form, therefor we are mandating this change." I think there will be a little too much libertarian in all of us to say grown men cannot decide what risks to take with their own bodies.
We're going to have to find a way to make the game safer. Period. Because its not going away. Maybe that means the no practice contact approach of John Gagliardi (since a lot of doctors believe a series of sub-concussive events cause more damage that the big kill shots you see players getting fined for in the NFL) or maybe it means bigger foam helmets or something else entirely.
Maybe too we'll just look at football like cigarettes in a few years. Ok, we concealed some of its dangers. Here is $2 billion to square up those concerns. Going forward, you will play at your own risk, and sign a series of waivers each step of the way. And that may shrink the pool of athletes a bit, and eliminate it entirely in places of affluence where it's not culturally important, but it's not changing in the Deep South or Texas or Ohio or Pennsylvania any time soon.