@joebeone What kool-aid are they drinking? Their description, below, sounds like the blurb for a bad sci-fi video.
WHAT IS WEB 4.0?
The expected fourth generation of the World Wide Web. Using advanced artificial and ambient intelligence, the internet of things, trusted blockchain transactions, virtual worlds and XR capabilities, digital and real objects and environments are fully integrated and communicate with each other. This enables truly intuitive and immersive experiences, seamlessly blending the physical and digital worlds.
BTW, I find it interesting that Bing refuses to index pages that were published circa 1995. Bing says they are missing "required" HTML meta fields - thus relegating "old" web content to the undiscoverable realm of Internet pre-history.