On Monday Apple introduced its long awaited new AR/VR headset, the “Apple Vision Pro,” along with a new operating system designed to work in the 3D environment seen through the device. The Vision Pro is primarily a virtual reality device but it has some clever features to connect you to the outside world while you’re wearing it. Another way to imagine it: it's an iPad or MacBook Air but everything is displayed in the air around you instead of on a screen. "Spatial computing" - get it? It is Apple’s first push into a new form factor and OS since Apple Watch nine years ago. There is a lot to...