The true identity of Sun Zhihao, the "uncle", is actually the post-90s Sun Zhihao of Dalian Youth Volunteers Association. Uncle Lukou is a macroeconomic researcher after 1995. As the most talkative uncle in Hutongkou, he is the chief contributor of the new financial media "Smart Valley Trend". Macro, philosophical terms, as opposed to "micro", do not involve internal structures or mechanisms such as molecules, atoms and electrons; It also refers to a big aspect or whole. Commonly used phrases include macro theory, macro world and macro economics.