Qarta

A search result answers the question you asked and tells you nothing about the question beside it. The encyclopedia's real gift was adjacency — the article you were not looking for — and the search box threw it away.

Reference sites have converged on one undifferentiated column of text. Nothing tells the reader how deep they are, how much is left, or where this sits inside a larger body of knowledge.

The same article has to serve a curious eleven-year-old and someone who needs the actual figure. Most sites pick one and lose the other, or split into a children's edition nobody maintains.

When a generative model writes a reference answer, the reader has no way to separate curated fact from plausible invention, and no page to check it against.

The illustrated plates were the part children remembered. A flat image of a diagram is not that — it is a photograph of something that used to be explorable.

Arabic reference works online are usually a left-to-right layout with Arabic poured into it, which is not how an Arabic book is read.

The book as the interface, taken literally: a shelf, closed volumes, spreads that turn, running heads, folios, a table of contents — with definitions, instruments and notes laid over the page rather than replacing it.

Four reading depths on every article, so one body of content serves the child and the specialist without forking into two products.

An order of trust enforced by the architecture rather than promised in the copy: curated editorial content first, identified external sources second — each carrying its source, licence and retrieval date — machine interpretation last, each a separate service the interface cannot confuse.

A reference desk that answers immediately and prints the page it answered from; where the book has no answer it says so and marks the outside source as outside. Every answer ends by offering somewhere to go next.

Margin notes written by a language model from the cited pages only, each note stating how it was written. With no key configured the note is composed locally instead, so the feature degrades rather than disappears.

Plates built on reusable engines — an orrery, a chart engine, a timeline, a globe — so a new plate is a configuration rather than new code. three.js loads only when a reader asks for three dimensions; molecules are drawn in SVG.

Photographs fetched from Wikimedia Commons at read time and shown only where the metadata records a free licence, with author and licence displayed beside them.

A full Arabic edition in which the book itself is mirrored — the cover hinges on the right, pages turn the other way, the index reorders by the Arabic alphabet — rather than an interface with its margins flipped.