Does this happen to everyone or is it an anomaly for certain people because of how their brains work? I trained BJJ and no-gi for a while, I was a 1-stripe white belt in BJJ and I competed twice. I trained close to 20 hours a week between strength training, muay thai, grappling, and crossfit but most of my focus was stand-up. Anyway I injured my knee right before a MT fight 2 years ago and eventually stopped training altogether. Now I am a very analytical person. At work they call me spock. I fully understand most aspects of the ground game from years of watching and some time training. I am still a little in shape but not like I used to be. Even though I have not trained in 2 years I feel like I am exponentially better at grappling than I ever was. Like I had time to sit and think about the techniques, and watch and understand the game a little bit more. I recently have been rolling with some friends, including a guy who is a blue belt and has about 60 lbs on me that I can submit regularly and do very well against. I see myself using techniques (effectively) that I never learned when I was training or would have even thought to use. This happen to anyone else?