Any MMA fans?

To the untrained eye MMA may look like two people kicking the cap out of each other but there's a lot more to it than that.
Most people don't notice everything that's going on as most people don't train any martial arts.

As someone who has training in multiple arts I can tell you there is usually so many things going on during any given fight it's hard for trained people to catch everything without watching a fight a couple of times or pausing and rewinding constantly. Most of all if you don't train you wouldn't be able to appreciate perfect displays of technique.