Biohacker Bryan Johnson says he created a 'newborn' version of himself in a petri dish as part of an experiment he believes could one day help grow replacement organs after his autoimmune gastritis diagnosis. The 48-year-old longevity entrepreneur, who says he spends $2 million a year on health interventions, wrote on X: 'I just cloned myself... as a newborn.' Scientists say medical cloning and lab-grown replacement organs remain far from becoming a reality. #byranjohnson #science #health #news #biohacker