Apple's Vision Pro mixed reality headset is a mega-hit that literally blew everyone's minds. Yes, glasses cost about the same as a spaceship. The first batch of 200,000 pieces sold out like hotcakes. But the gadget is truly impressive. For example, you can download the application and learn to play any musical instrument. For example, piano. In the app you can select the tempo that suits you, and the interactive display will tell you the notes you need. Is this working out? Musical music is no longer needed!