Latitude/longitude would be more like IP addresses and HTTP headers. They require some technical knowledge to use and understand, but they're still quite human-readable unlike raw GPS signals or ethernet frames.
(As an aside, most GPS units also display the altitude. I live in a mountainous region, so I often make use of this figure.)
I'd like that to be true, but I think we lost that battle a long time ago. Google results aren't a readable URL; nor are products on Amazon or Ebay or anywhere else I can think of. Newspaper-type URLs are often "fake human-readable"; the URL is something like http://somepaper.com/12345-Local-Man-Found , but in fact http://somepaper.com/12345-Local-Man-Still-Missing will give you exactly the same story. Even HN stories aren't human-readable, just an opaque id number.
But I don't think "fake human-readable" URLs break the analogy with physical addresses. There are many different ways of writing the same address:
987 Some Avenue West, Unit 123, Brooklyn, New York, NY 12345-6789
Unit 123, 987 W. Some Ave., New York 12345
123-987 Some Av W, NYC, NY
And the numbers aren't just opaque identifiers (except for the zip), at least if you're walking down the street: you know that 28 is next to 26, opposite-ish 27, and halfway to 56. There's nothing that corresponds to walking along the street on a website.