Becoming a Blue, Purple, Brown or Black Belt has nothing to do with specific techniques. It has everything to do with how you move, assimilate proprioceptive information, develop sensitivity to pressure and weight, combine timing with fluidity.
It’s a way of being and doing its not a curriculum. You will never see the elbow knee escape as its taught to a beginner in high level Jiu-Jitsu. Instead what you will see is an assimilation of techniques, movement and timing that is the perfect answer to a problem presented at a specific moment in time. A problem that will disappear as fast as it was created and an answer so specific and perfect it may never be correct again after that instance.
Good Luck and Good Training,