Why was 10,000 yuan enough to make someone a millionaire 30 years ago, but today that same 10,000 yuan can't even buy a toilet in a county town? Where did the money go? And why is there inflation? This is the most comprehensive science popularization video on the internet( produced by Meng Yan), clearly explaining the underlying logic of "printing money" and "inflation." The cruelest rule in this world is: the growth rate of circulating currency is always greater than the growth rate of productive output.