In the story, a toy from the future falls backward through time and waits in the dirt for children to find it. History does this constantly: an eclipse computer in a shipwreck, an algorithm in a countess's footnotes, a logic with no use for eighty years, a theorem in a journal that died. This bench is the tool forge — every instrument functions, recovered and verified — and it opens, fittingly, with the oldest of them: a 2,000-year-old computer you can crank.
⊙ a tool forge — every instrument here functions, for education & simulation only
futuristic tech that came from the past — what fell in, and when the world finally caught up
it opens with № 00, the working Antikythera — crank it and it computes the sky. The original quantum drawers ran 01 · 02 · 03 · 05 · 07 · 08; instruments 04 and 06 were missing, and have been recovered. And № 11–14 are the analog–quantum suite: hardware (the toroid tank) ⇄ software (kernels, the analog ISA) ⇄ the sync (a real PLL) — analog software and analog hardware, proven to be two spellings of one machine.
the deeper shelves — the dots in full, and the emergence essays (speculation honestly flagged within)