 Basically those principles in a very informed and articulate way, I don't consider you an expert, like to be to be breaking down hypertrophy studies and that kind of stuff, because most of those involve all of those complex topics. And if you're going to arrive at here's how we got these results, you actually do need to understand how all of those things work and fit together in the research. So those are kind of the basics that you really do need to have now. When I say people need to understand them, if I say explain to me him and size principle and you're like motor unit recruitment, like it's when you're for motor use smallest to largest I'm like, cool, you understand motor unit recruitment right.