Cancer is immortal. Do you want to be cancer? If people live forever then they can't have babies. Is that what you want?
Technology has nothing to do with it. Increased learning is not beneficial. Doctors would not wash hands just because patients lived longer. The only reason we consider hand washing essential now is that all the old school doctors have died. Doctors refuse to learn about vitamins and nutrients even though other doctors report great benefits from such knowledge. The subject of nutrition has to wait for all the doctors of the old school to die.
BTW, nutrition research has revealed that a daily dose of vitamins A, C, and E will double the life span of test subjects. For humans that means 120 years. But we already knew 120 years was the limit, so that is not exactly a breakthrough except for individuals who for some reason want to live 120 years.