Bryan Johnson· Author
Example: a PACE of 0.5 means that you celebrate your “biological” birthday only once every two calendar years.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Example: a PACE of 0.5 means that you celebrate your “biological” birthday only once every two calendar years.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
A pace of 1 means you are aging 1 year per calendar year, lower than 1 means you are aging slower, and higher than 1 means you are aging faster.