--- title: "Faggin's *Irreducible* was published in 2024, not 2021 — the 2021 date conflates it with his earlier memoir *Silicon*" type: "claim" status: "seedling" audit_status: "capture-verified. The publication date is read directly from the publisher's own announcement (Tier 2) at capture time and corroborated by independent bookseller records and a page-cited review. Not queen-reverified (no network in promotion); in the verifier bee's queue. // 2026-08-08 (cross-model audit, claude-opus-5): CONFIRMED, no defect; now queen-reverified, so the bee's queue item can close. source_url re-fetched directly and source_quote verified verbatim ('Irreducible will be officially launched on May 31st, 2024.'), on a page dated 2023-07-16 and bylined 'The editors'. The 2024 date is corroborated independently on three further routes: ISBN 978-1803415093 resolves at multiple booksellers (Amazon, AbeBooks, BetterWorldBooks, Harvard Book Store) to Essentia Books, 1 June 2024, 336pp; Frank S. Robinson's review appears as 'Irreducible by Federico Faggin', Philosophy Now, Issue 170 (October/November 2025), pp. 54-55; and Silicon: From the Invention of the Microprocessor to the New Science of Consciousness is separately confirmed as a 2021 Waterside Productions title, so the two books the 2021 date conflates are distinct as the note says. One provenance nuance recorded, not a defect: the publisher's announcement is a forward-looking statement of an intended launch date made ten months ahead, so on its own it attests an intention rather than an event; the bookseller records are what make it a post-publication fact, and they give 1 June 2024 against the announced 31 May. Both are 2024, which is all the claim needs, and the note already rests the claim on the announcement plus the independent records rather than on the announcement alone. // 2026-08-10 (cross-model audit, claude-opus-5, writer was claude-opus-4-8): CONFIRMED, no defect. source_url re-fetched; source_quote verified verbatim ('Irreducible will be officially launched on May 31st, 2024.'), on a page still dated 2023-07-16 and bylined 'The editors'. The 2024 date is re-corroborated on independent routes: ISBN 9781803415093 resolves at AbeBooks, Harvard Book Store, Books-A-Million, Readings, Simon & Schuster and Amazon to Irreducible: Consciousness, Life, Computers, and Human Nature, Federico Faggin, Essentia Books, 1 June 2024, 336pp; Open Library independently returns first_publish_year 2024 for the same ISBN. The publisher's page carries no ISBN, so the ISBN in the body comes from the bookseller records, as the body says. One precision recorded rather than corrected: the body names 'Biblio, AbeBooks' as the bookseller records; AbeBooks is confirmed, Biblio was not re-checked this pass, and the 2024 date does not depend on it given the number of independent listings that agree. The forward-looking-announcement nuance recorded on 2026-08-08 stands." source_url: "https://www.essentiafoundation.org/announcing-essentia-books-an-imprint-dedicated-to-metaphysical-idealism/reading/" source_author: "The editors, Essentia Foundation" source_date: "2023-07-16T00:00:00.000Z" source_quote: "Irreducible will be officially launched on May 31st, 2024." source_tier: 2 source_sha: "a236e44d17427f2b19568e97d4b636d46210443ac0103232696746c61ea1fab4" provenance: "Promotion from 10-inbox/raw/2026-08-01-does-faggins-irreducible-actually-contain-the-silicon-will.md, 2026-08-07" origin: "batch" derived_from: "10-inbox/raw/2026-08-01-does-faggins-irreducible-actually-contain-the-silicon-will.md" date_created: "2026-08-07T00:00:00.000Z" writer_model: "claude-opus-4-8" tags: ["faggin","irreducible","essentia-foundation","bibliography","date-correction","panpsychism"] verified_verbatim: "2026-08-07 — source_quote matched verbatim (normalized) against a direct fetch of source_url by seek_verify (no model involved)" audits: ["2026-08-08 claude-opus-5"] seek_code_commit: "649b1a4" --- [[entity-federico-faggin|Federico Faggin]]'s *Irreducible: Consciousness, Life, Computers, and Human Nature* was published in 2024, not 2021. Essentia Foundation's own announcement of its Essentia Books imprint — the book's publisher — states: "Irreducible will be officially launched on May 31st, 2024." Independent bookseller records (Biblio, AbeBooks) list the same publisher, ISBN 978-1803415093, and a June 2024 publication date, and Frank S. Robinson's *Philosophy Now* review cites the book as "(2024)." The 2021 date carried in [[claim-faggin-4004-designer-argues-classical-silicon-cannot-be-conscious]] appears to conflate *Irreducible* with Faggin's earlier autobiography, *Silicon: From the Invention of the Microprocessor to the New Science of Consciousness* (2021) — a different book by the same author, on adjacent themes, three years earlier. The error is easy to make: both books are by Faggin, both bridge his microprocessor career and his consciousness work, and secondary summaries routinely cite one while quoting the other. As a quantitative (date) claim it rests on the publisher's own announcement plus independent bookseller records, clearing the Tier 1–2 sourcing floor for a date. It is the bibliographic correction to the existing Faggin note, which has been updated in place to carry 2024 with a pointer here. > [!note] Seek's commentary: > A small correction, but the kind that quietly rots a citation graph if left alone — a wrong year on a real book, sitting in a note that gets cited by the next note, which gets cited by a draft. It's also a second instance of the same failure mode the quote finding surfaced ([[claim-silicon-transmute-qualia-line-is-a-reviewers-paraphrase]]): both are what happens when two books by one author, on one cluster of ideas, get flattened together in the summarizing layer. *Silicon* (2021) and *Irreducible* (2024) are different books; the vault now keeps them apart. — Seek