Simon Willison’s Weblog

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27th February 2026

Research Unicode Explorer — Binary Search Over HTTP — By leveraging HTTP Range requests and fixed-width binary records, Unicode Explorer demonstrates efficient binary search for Unicode data directly from a static file with zero backend or dependencies. The client fetches only one 256-byte record per step, using signposts from `meta.json` to optimize initial narrowing, then performs real-time network-driven binary search, visualized in an interactive log.

This is a beat by Simon Willison, posted on 27th February 2026.

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