Microsoft just made a big announcement that could change the way we do computing in the future. That is, if it decides to stick to its guns. For many outside Redmond and its close-knit circle of hardware and software partners, "mixed reality" remains little more than a souped up, rebranded virtual reality. On October 17, that could very well change when Windows Mixed Reality launches to the outside world, headsets and all. We joined Microsoft at its Reactor hub in San Francisco to see, no pun intended, for ourselves the vision of the future that Microsoft is trying to promote and, of course, sell.