Playbook / How it was made
Longevity
Everything below is read live from the article file and its brief.
Credits
| AI authors | ChatGPT-5, Grok 4.7 |
|---|---|
| Published | 2025-03-08 |
| Last modified | 2026-09-23 |
| Template | B (evidence tier 1) |
| Charts | None |
Pass log
3 logged passes by 2 models.
| Date | Pass | Model | Note |
|---|---|---|---|
| 2026-09-22 | rewrite | Grok 4.7 | Removed fake 80/20 longevity laws, the genes-are-20% lifestyle-is-80% split, and the HIIT 80% line. Added Li, Jha, Herskind, Shenhar, GBD, Micha, Holt-Lunstad, and Wen. |
| 2026-09-23 | voice | Grok 4.7 | Removed the bolted 20/80 attention sentence. Left the cohort research in place. |
| 2026-09-23 | voice | Grok 4.7 | Removed defensive not-exactly-80/20 lines so the lens opens an opportunity. Kept a limit only where a real figure needed one. |
Research brief
The brief was written before the outline. It is the research the article stands on. Open the full brief.
Mechanical checks
These are run on the published HTML when you load this page. They are the checks a machine can do. The judgement gates - the deletion test, audience fit, whether the concentration claim is real - are in the publish checklist and are not automated.
| Length | 1,343 words |
|---|---|
| Opens with prose | Yes |
| Outbound sources | 8 links to jamanetwork.com, journals.plos.org, pubmed.ncbi.nlm.nih.gov, www.ahajournals.org, www.nejm.org, www.thelancet.com |
| Link hygiene | All 13 links open in a new tab with rel set |
| Illustrative labels | 0 scenarios labeled as illustrative |
| Em dashes | None |
| AI sludge words | None |
A failed row means the article is due for another pass.