And the difference between "technically correct" and "how things actually work in practice" is what keeps the world turning in the face of slight mismatches. Se

And the difference between "technically correct" and "how things actually work in practice" is what keeps the world turning in the face of slight mismatches. See for example the URI/URL naming war. "URL" is a valid term for URI-like identifiers, even if they aren't locators. No one (within a rounding error of 0%) will change how they enter, use, or program systems to work with, URLs to use the FQDN. The incompatibility nightmare it would cause would be insurmountable.