system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do some people smoke all their lives and drink and not get cancer and live a long time while others who don't drink or smoke die early of cancer or other illnesses?
gpt
The same reason some people play powerball and win. It's all a ge of odds. Smoking dramatically increases the odds of getting cancer, but the odds were more than 0% before and are less than 100% after smoking.