So I agree that we can assume causality somehow but we are much more interested in how the graph looks like, right?
Not necessarily? Reality is really really big. It would be computationally infeasible to work with raw reality. Rather, you want abstractions that cover aggregate causality in a computationally practical way, throwing away most of the causal details. See also this:
Not necessarily? Reality is really really big. It would be computationally infeasible to work with raw reality. Rather, you want abstractions that cover aggregate causality in a computationally practical way, throwing away most of the causal details. See also this:
https://www.lesswrong.com/posts/Gkv2TCbeE9jjMHXKR/reductionism-is-not-the-ultimate-tool-for-causal-inference