https://preferencespace.com/writing/Data engineer and applied ML researcher. Retrieval, open-weight models, and tools built over real corpora. https://preferencespace.com/writing/how-this-site-is-built/ https://preferencespace.com/writing/how-this-site-is-built/Wed, 09 Sep 2026 12:00:00 +0000 A short note on the machinery behind preferencespace.com, which doubles as the example post for the format. https://preferencespace.com/writing/how-i-built-mindscape-explorer/ https://preferencespace.com/writing/how-i-built-mindscape-explorer/Wed, 09 Sep 2026 12:00:00 +0000 A build log for the tools over 439 episodes of Sean Carroll's Mindscape, from a respectful scraper to topic models, a serendipity recommender, and a search that understands the question. https://preferencespace.com/writing/digital-contact-tracing-middle-ground/ https://preferencespace.com/writing/digital-contact-tracing-middle-ground/Mon, 20 Jul 2020 12:00:00 +0000 An essay from the first months of the pandemic on the ethics of digital contact tracing, with a note from five years on.