But, I’ve used essentially every major VR headset and AR device since 2013’s Oculus DK1 right up through the latest generations of Quest and Vive headsets. I’ve tried all of the experiences and stabs at making fetch happen when it comes to XR. I’ve been awed and re-awed as developers of the hardware and software of those devices and their marquee apps have continued to chew away at the “conundrum of the killer app” — trying to find something that would get real purchase with the broader public.