Increased incidence of cancer can be indicative of the improved resilience of the human species. The environment constantly evolves in uncertain ways. To adapt to the constantly evolving environment, a species needs to also evolve. Increased mutation is equivalent to increased evolution. Unfortunately, with increased mutation comes increased negative mutation, leading to cancers. The propensity to mutate is collectively positive for the species but individually negative for a particular member of the species. Positive mutations may go unnoticed or unreported whereas negative mutations naturally draw attention as treatments are sought.
Is it possible that some cancers are in fact an early evolutionary phenomenon which left untreated could lead to a discontinuous evolution of the species?