Its just a different kind of addressing. The way different things are integrated is an independent concept. Perhaps you could expose URLs in a unix file model

Its just a different kind of addressing. The way different things are integrated is an independent concept. Perhaps you could expose URLs in a unix file model style and pretend that they are files. Or build http into the kernel and give every file and executable on the system a URI. Or even map 64 bit processor address space to IPv6 addresses. Based on a 4k block size you could address every hard drive in the world in a 64 bit single subnet. My point is that files are just one type of abstraction. URLs are just better.