No amount of correlation seems to imply causation. Suppose there is some event X that always causes two other events, Y and Z. Let's also say that Y and Z are e

No amount of correlation seems to imply causation. Suppose there is some event X that always causes two other events, Y and Z. Let's also say that Y and Z are exclusively caused by X. Then Y has a 100% perfect correlation with Z, but ex hypothesi it is not caused by it.