If you dont believe in science and math, how can you believe in bitcoin?
I do believe in science and math, that's precisely why I don't believe in a man made environmental change. It's an unproven hypothesis.
According to the Chinese government, there is no link between cigarettes and cancer. Western cigarette companies continue to argue in US courts that the link between cancer and cigarettes is only speculative.
Do you agree that cancer being caused by cigarettes is an unproven hypothesis?
I know that there are people who chain smoke and live happy healthy lives well into their 80s and 90s.
Whether you'll get cancer depends on many factors, such as your genetic make-up, your mentality, and your overall lifestyle.
So no, it's not proven that cigarettes de facto cause cancer. They correlate with an increased risk of such, the reasons for which are not fully understood. If they were we would've identified a counter-mechanism to it by now.
This is the problem with science and people who don't understand statistics arguing about it by the way. This includes most scientists who never studied statistics rigorously and only know how to run shitty t-tests and compute confidence intervals, σ-values and whatnot.