> therefore it must not be real I've never claimed the opposite. There is space between black and white. Granger causality in economics differs from the classi

> therefore it must not be real I've never claimed the opposite. There is space between black and white. Granger causality in economics differs from the classical principle of causality typically used in natural sciences like climatology. My comment was "I'd be careful to derive causality from overlaying charts with stuff."