Unmm... how so? He's still every bit as aware and responsive as he's always been, though admittedly, he does slur a bit from his fighting days... not nearly as bad as Holy/Bowe. I've seen zero signs of pugilistic dementia Relative to a lot of guys, Mike didn't take too much punishment in his career.
He’s never been the same after the first Holyfield fight...he just went crazier and crazier since then