>>276715365
And what are those "certain things"? Inside-out tracking with enough cameras can still do the aiming to both sides or behind you thing. There is nothing fundamental about inside-out tracking technology itself that limits it from doing the things people were ever actually doing (as opposed to theoretically being able to do). If you want to make the argument that it's bad because we can't do some small number of actions that we used to be able to do, then the same applies for outside-in, because outside-in cannot deal with infinitely large play spaces, or irregular room environments where there can be physical objects blocking a base station. Sure most users would never have that, but it's still limiting the possibilities. Ultimately VR hardware is a set of trade-offs, and here, there's really a lot more benefit to systems using (good) inside-out tracking as the basis of their tracking, than outside-in, especially when you consider that outside-in could still be an optional add-on (a camera-based FBT system like Kinect but not janky could in fact be combined so that the tracking quality of both are increased). 

Yes I'm referring to external base station or sensor based systems as outside-in, not tracking systems that use sensors looking at the objects being tracked, even though that's technically what it should mean.