On the phone, latency means echos and talking over each other. We can adapt to that, so wireless phone headsets are popular. With virtual reality, latency means dizziness and “VR sickness” because visual events lag behind user actions. VR headsets remain wired to minimize latency and because they use so much power. UWB offers such a dramatic reduction in latency and power consumption that wireless VR and AR suddenly become possible. And you could stop talking over everyone on the phone.