The simple answer is we are debasing our currency in a very complex way, that we cannot measure how much we debased it. In the past kings printed new coins to fund their wars or whatever and it was easier to track how much the currency lost value. In the present because economies have gotten complex + tools to debase have gotten complex we cannot estimate how much we have actually debased our currency by. If it’s 100% then there’s going to be a lot of inflationary pain, if it’s 10% we can probably handle it but I wouldn’t hold my breadth on getting any good estimate