Aubrey de Grey

Aubrey David Nicholas Jasper de Grey is an English biomedical gerontologist. He is the author of The Mitochondrial Free Radical Theory of Aging and co-author of Ending Aging. De Grey is known for his view that medical technology may enable human beings alive today not to die from age-related causes. As an amateur mathematician, he contributed to the study of the Hadwiger–Nelson problem in geometric graph theory, making the first progress on the problem in over 60 years.