But it doesn't matter. You're sitting in a small room with dim lights and someone tells you that you have two choices:
1. You can die a certain death, within months, with very little pain, or
2. You can try some heroic measure like chemotherapy for a minuscule chance of a multi-year moderately happy, but extremely painful survival.
Humans are programmed to have hope, and, regardless of any logic, the vast majority will choose option 2. It's just like playing the lottery. Even now, as I think about those two options in good health, I am compelled by my nature to choose option 2.