I don't see where causation entered the conversation. Correlation and causation have the same predictive power. If the water on Mars turns 90% of people into men or 90% of the people that drink said water are already men, either way if you tell me you drank the water on Mars I know with a 90% certainty you are a man. Algorithms find both correlation and causal factors which is fine because I want accuracy whether or not it is based on causality.