Summary:
- The article discusses the work of Bryan Johnson, a tech entrepreneur who founded a company called Kernel that aims to enhance human intelligence through brain-computer interface technology.
- Johnson has invested $100 million of his own money into a project called Age Reversal (AG1), which aims to slow or even reverse the aging process through a combination of diet, exercise, and medical interventions.
- The article highlights the criticism and skepticism that Johnson's ambitious goals have faced from the scientific community, who argue that the claims made by AG1 are not yet supported by robust scientific evidence.