Yudkowsky's counter-argument to the philosophical issue of copies vs. "really you": http://lesswrong.com/lw/r9/quantum_mechanics_and_personal_identity/
Yudkowsky's counter-argument is a counter-argument to a straw man, since I don't think anybody ever argued in modern times that personal identity is linked to a specific set of individual atoms. Everybody knows that atoms in the brain are constantly replaced.
Everybody knows that atoms in the brain are constantly replaced.
I don't know if this is true.
http://askanaturalist.com/do-we-replace-our-cells-every-7-or-10-years/ http://rebrn.com/re/theseus-body-is-there-any-part-of-a-human-that-is-cellularly-or-873979/ http://www.theguardian.com/science/neurophilosophy/2012/feb/23/brain-new-cells-adult-neurogenesis All 3 links suggest the opposite.
Can You provide a source for this claim?
BR
http://www.technologyreview.com/view/541311/the-false-science-of-cryonics/
Michael Hendricks is a neuroscientist and assistant professor of biology at McGill University.