This doesn't seem quite right to me. The browser is analogous to an operating system, and tabs to applications. Embedding a whole OS into a single page could ha

This doesn't seem quite right to me. The browser is analogous to an operating system, and tabs to applications. Embedding a whole OS into a single page could have niche uses, like software ports or "fun", but I doubt it will ever become a dominant way of using software. All that seamless session stuff is quite achievable by syncing browser state. It's already popular to sync tabs and tab groups and such, so why not JS/WASM engine state and other stateful elements of tabs?