[mistermann]

> The question is: are people stupid because they are smoking or are they smoking because they are stupid.

I would argue that culture is a better root cause causal explanation, with stupidity and smoking both being consequences of that (though each with their own causal influence to some degree).

[LudwigNagasena]

Culture is a non-explanation. Everything is culture. Culture is everything. Culture is influenced by everything and everything influences culture.

[mistermann]

One of these ("Culture is a non-explanation") is not like the others.