Is it a mad dream to wish that was never gets DOM access, and instead there is invented a less memory-hungry dynamic representation of web pages that's usable o

Is it a mad dream to wish that was never gets DOM access, and instead there is invented a less memory-hungry dynamic representation of web pages that's usable only by wasm? Yeah, it's a mad dream. But it's also maddening that I can effortlessly open a 100 MB PDF but browser can barely handle a 10 MB html document.