For a fairly long time Muhammad Ali, 72, has been in declining health due to Parkinson’s disease and other ailments. A guy who was so physically dazzling with such a lithe and beautiful mind turned into a withered, slow-moving old man who has trouble speaking. Aging can be torture. I remember when he showed up at the Spirit Awards in ’98 or thereabouts and everyone cheered him with “Ali Boom Ba Yay!” I own a DVD of Ali’s greatest fights, and when I want to go to bed with a smile I always watch his 1974 Zaire championship bout with George Foreman. Works every time. I’m catching a screening of I Am Ali a few days after I return to Los Angeles.