reminds me of https://www.hpl.hp.com/research/ptm/papers/ptm.pdf | Hacker News

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joshu on Feb 15, 2023 | parent | context | favorite | on: Mysterious doodles hidden in a 1,300-year-old book

reminds me of https://www.hpl.hp.com/research/ptm/papers/ptm.pdf

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