We Are Information: How the Persistence of Identity in Old Age, Twins, and Cellular Recycling Reveals that Matter is Merely a Support

This article starts from the observation that personal identity persists even after the complete replacement of all matter constituting the body throughout life. Through the analysis of phenomena such as old age, the differentiation of monozygotic twins, and cellular recycling, it demonstrates that information is more fundamental than the material substrate. This persistence is mathematically formalized using mutual information between temporal states of a system with a null material intersection. Building on this foundation, the article speculates on the possibility that the universe itself operates by analogous informational principles, where stars, galaxies, and physical laws themselves could be expressions of informational invariants. Biological death is reinterpreted as the loss of the capacity for self-organization, not necessarily as the disappearance of information. The article concludes with a provocation: what if life is just a particular case of a universal phenomenon of information persistence?