My first thought was, what the heck does this have to do with Tai Chi and then I saw the little button on the left that said Tai Chi Chuan just as I was about to shut it down and post "What the heck does this have to do with Tai Chi"
Apparently he is a student of a student of Gin Soon Chu who was a student of Yang Chengfu's oldest son.
There are a lot of videos here that I will not comment on but I am not sure which video you are referring to for mark Brams demonstration of chi ability