[MUSIC] I hope you've enjoyed out trip into voluntary movement. I, I am a big fan of voluntary movement. I think it's quite amazing. The variety of movements that we can make, the smoothness with which we can make movements. The emotion with which we can imbue movement. And, and the, the wide variety of places where things can go wrong. From the neuromuscular junction, to the motor neuron. To the motor cortex. Things that happen to the brain stem and, and affects central pattern generators. And then, obviously, the big two the, the major motor loops, the cerebellum and the basal ganglia. And all of these are affecting movement but in very, very different ways. So, movement is our only way of expressing ourselves. I've said that over and over again. I just find that such a profound thing that I, I like to say it a lot. That's the only way that we have to communicate with others. And so, it's that, that is the bottle neck for this enormous central nervous system. 200 billion neurons, or so, in our brain. And they all have to get expressed through these movement pattern. These movement pathways that all end up channeling through at, at the most 100,000 motor neurons. [MUSIC]