I love it how they call it "bruce's 1 and 3 inch punch" like he invented it. Sorry but Fa Jing has been around for a long time, and it is much more effective when done without excessive rules, and formal guidelines. To be honest, judging from what I've seen from real masters, that clip isn't even impressive. Real Fa jing is actually truly striking, and causing severe internal damage, this can be done almost at point blank range. Not just pushing them backwards (not even that far). You can tell its fa jing because of how his body shakes. The problem with karatekas and fa jing, is they formalize it, rather than done naturally. I did it with just SHaolin training under my belt, once I started taking Taiji, within a month it was easy to do with my palm resting on the persons chest. And I'm just a beginner at Taiji compared to masters of the old.