Comment by trehans

7 hours ago

But randomness comes from the environment, no?

No, you randomly get cancer since cancerous mutations happens randomly. Environment can just affect chance of getting cancer, it doesn't give you cancer directly and there is no way to completely avoid cancer risk.

For example even if you live the best life possible you will still have an inherent cancer risk based on your genes and that affects the random chance of you getting cancer, it isn't a clock that says exactly when cancer will happen.

Technically, sure, but that doesn’t mean it is related to anything observable about your environment.