I'm not even sure we are at the compelling apps stage yet. I think there are still very difficult hardware and software platform issues to solve first that are

I'm not even sure we are at the compelling apps stage yet. I think there are still very difficult hardware and software platform issues to solve first that are going to take tons of basic research. I expect the first 100 million unit headset to include extremely accurate eye-tracking that is used to drive foveated rendering, varifocal active lenses and neural network interpolated facial expressions for high fidelity social avatars. Facebook Research seems to be making good progress on all of that, but it will still take many years of additional research to perfect. Facebook wants to be the company to invent the first mainstream VR Metaverse, but that doesn't mean they won't invent the hardware and get beaten to market on the software. They are about to release Horizons which is clearly in this vein, but I expect they are still too early.