Viewer discretion is advised. You truly need a master to teach you before you could master a style or two. Furthermore, without practice, to quote Bruce Lee when he was asked if he could break five or six pieces of wood with his hand or foot: "I'd probably break my hand and foot! "
National Geographic documentary: Kung Fu Killers
To quote Bruce Lee again: It's more of an exercise for the elderly then the young.... it's very slow and you push it out but all the time you are keeping the continuity going; bending, stretching, everything. you just keep it moving... the idea is "running water never grows stale." so you've got to just "keep on flowing."
CCTV 4: The Wisdom of Tai Chi
Jet Li's Long Fist performance in a national contest in 1978, when he was just 14 years old.