[zkelvin]

Every day, something like 100 cells in your body become cancerous, but your immune system shoots them down before they can cause any harm. This is effectively a general prophylactic for cancer, so it's not unreasonable to think that we could discover a general cure for cancer (and that something immunotherapy is a promising candidate).

[Amarok]

Once the cancer starts to freely mutate it becomes much harder to contain. It's not just cleaning up defective cells, it's full on evultionary warfare between your immune system and the cancer.

[jorvi]

For the most part it is devolutionary warfare for the cancer.

[telgareith]

There is no such process.

[jorvi]

You should read up. This is basically cancer 101.