I absolutely envy my former colleague's gains and would gladly have my noggin knocked if I was guaranteed to have similar results! Unfortunately, because they

I absolutely envy my former colleague's gains and would gladly have my noggin knocked if I was guaranteed to have similar results! Unfortunately, because they both led ordinary lives, there were no scans of their brains prior to the accident (yes, I asked). And, there certainly weren't any brain related devices recording their accidents. So, I'm not aware of any easy way to identify the injuries with enough precision.