This video SORT of has it right. Needing more money to buy the same things is a SYMPTOM of inflation, it is not inflation itself. Inflation is simply increasing the money supply without increasing the resource backing it. Or if nothing is backing it, simply increasing it.
Mike Maloney's Secrets of Money (required watching):
https://www.youtube.com/watch?v=DyV0OfU3-FU&list=PLE88E9ICdipidHkTehs1VbFzgwrq1jkUJ
This video SORT of has it right. Needing more money to buy the same things is a SYMPTOM of inflation, it is not inflation itself. Inflation is simply increasing the money supply without increasing the resource backing it. Or if nothing is backing it, simply increasing it.