Meta page describing Gwern.net, the self-documenting website’s implementation and experiments for better ‘semantic zoom’ of hypertext; technical decisions using Markdown and static hosting.
Gwern.net implements “bidirectional” hyperlinks6 or backlinks (eg. this page): links are both forwards (the normal kind) from the current page outwards to another; but also backwards, showing where on other pages is the current page linked.
Its backlinks are especially good because popups provide frictionless navigation; and our careful implementation means they can be provided in-context near the referenced content, and even between arbitrary URLs (via annotations).