Inflation is at it's heart, a tax, and behaves exactly like one. I'm not sure of the situation now, but for example at one point in Venezuela, even though the currency was nearly worthless, no one had any cash because the government had basically taken it all. So even though the prices of stuff keeps going up people have less and less money to spend on it. (Sorry if this comment is unrelated to the video, I generally don't watch them).
(Sorry if this comment is unrelated to the video, I generally don't watch them).