All martial arts tend to be big on repeating movements over and over – BJJ-ers practice hip escapes and triangles, Wing Chun-ers practice Su Lim Tao, Tai Chi-ers practice form movements over and over. We intuitively recognise the benefits that repeating a sequence of movements gives us – we become more fluid and after a while it feel like these moves could be something we could actually pull-off under pressure. Well, it turns out there is a science behind repetition, and this TED video explains what it is: