How come longevity research is so popular on /sci/ but no one cares about cancer in that setting? There is no scenario where curing aging makes sense without an universal anti-cancer therapy that works for all malignancies with minimal side effects.

Even getting people to live 120 years would virtually guarantee that all of them die of cancer at the EOL and a vast majority would not reach their 70s.

Either they develop cancer and outright die from it, or successfully treat it, but chemotherapy would age them by 20-30 years on cellular level rendering any anti-aging measures moot. Not to mention secondary malignancies either from primary cancer (eg. secondary cancers from immunosuppressive effects of the primary malignancy) or the treatment itself (secondary leukemia or solid cancers from platinum agents).