Longevity Expert Explains How Bryan Johnson Has Not Reduced His Pace of Aging by 31 Years

Report (byline Victor Ciardha, published 24 September 2024; byline and date confirmed on the fetched page) in which epigenetic-aging researcher Dr. Morgan Levine PhD critiques Johnson's widely reported claim of a 31-year reduction in his 'pace of aging.' Levine's stated position, paraphrased here rather than quoted verbatim because the fetched extraction contained internal ellipses/brackets that made an exact-substring quotation unreliable: epigenetic clocks determine relative aging rates and are not measured in units of years, and a rate of aging measured at a single moment cannot validly be extrapolated across an entire lifespan the way Johnson's headline figure implies; she characterizes the specific 31-year claim as unsubstantiated and overhyped. Established-expert-tier source under the sourced-critique standard.