What is "the Web"? We have some too-narrow definitions like "that thing Chrome, Firefox, and Safari browse", and some too-broad definitions like "anything built with HTML, CSS, and Javascript."

So far I've got that the is composed of documents (resources? objects?)
1. that can be visited and interacted with using a person's choice of user agent,
2. that have names (URLs) by which anyone in the world can refer to them and get to them,
2a. for which visiting doesn't cost a disproportionate amount, so that browsing is practical, and
3. that recommend other such documents by linking to them.

A bunch of this is going to be fuzzy, but it seems fine for something to be more or less part of the Web instead of definitely in or out.

What am I missing?

Jeffrey Yasskin (@jyasskin@hachyderm.io)