Colophon

Rules the build enforces

• Numbers live in one place. Every figure is defined once in a registry with its source and how it was checked, and cited by identifier. A bare figure anywhere in an entry, including in its title or its summary, fails validation. This is what makes it safe to write the same result several ways: wording changes, figures cannot. The timeline is the one exception, and deliberately so: an event is a claim about a single day and must never be updated afterwards, so its figures are frozen beside the document that recorded them.
• Nothing is published by accident. Visibility is decided in frontmatter, enforced in the loader, and any entry that is not public must record why. Withheld entries never reach an index, a feed, or the sitemap.
• Every date has evidence. Timeline rows name the document or commit that proves them.
• Links carry a checked date. Link rot is the normal failure of a research index, so the site shows when a link was last confirmed instead of implying links are permanent.
• A malformed entry stops the build. An index that quietly drops a bad file is worse than one that refuses to build.

Readings

Some entries are written for more than one audience. Switching reading changes vocabulary, assumed background, and how much notation appears. It never changes a figure, a date, a citation, a limitation, or the strength of a claim, and the build checks that rather than trusting it.

Plain

States what was asked, what came back, and why it matters, in ordinary words, with a concrete image where one exists. Defines any technical term on first use. Skips machinery rather than gesturing at it. Calibrated one level below where the topic is normally studied.

Applied

Bridges from the reader’s own field to this one and states plainly where the bridge stops. Leads with approach and cost: what was run, on what, for how long, what broke, and which parts are reusable elsewhere. Keeps the interface, drops the proofs.

Technical

Definitions, notation, the precise statement, the algorithm, the prior state of the art and what improved on it. Assumes the literature. No analogies. This is the canonical reading; the others are derived from it.

What this site does not have

No comments, no reactions, no view counters, no newsletter modal, no share buttons, no citation metrics. Mathematics is typeset at build time rather than in the browser. Nothing essential requires JavaScript: search, reading switches, and previews are additions to a page that already works without them.

Built with

Next.js with the app router, MDX compiled at build time, KaTeX for mathematics, Tailwind for styling, and a content schema validated with Zod. Source lives in a repository under the author’s GitHub account.