Strong technologies capture the imaginations of technology enthusiasts. That is why many important technologies start out as weekend hobbies. Enthusiasts vote with their time, and, unlike most of the business world, have long-term horizons. They build from first principles, making full use of the available resources to design technologies as they ought to exist.

When I started my career 3G was the hot topic, and every investor kept asking ‘what’s the killer app for 3G?’ It turned out that the killer app for having the internet in your pocket was, well, having the internet in your pocket. But with each of those, we knew what to build next, and with VR we don’t. That tells me that VR has a place in the future. It just doesn’t tell me what kind of place.

The successor to the smartphone will be something that doesn’t just merge AR and VR but make the distinction irrelevant - something that you can wear all day every day, and that can seamlessly both occlude and supplement the real world and generate indistinguishable volumetric space.