Yeah, fiat money really a bubble and one of the disadvantage it's inflation. You can collect a lot of money but is it have a sense if by twenty years your money will lose a half of value on this money. So, you must know it and not only collect money but also invest and generate more and more money that inflation can't "eat" your money.
policy controls related to government investment can optimize the rate of inflation development, this will save many developed countries and some developing countries, but unfortunately not to other countries. The concept of fiat bubbles is not entirely true because there is socioeconomic control so it is not broken and is always monitored institutionally, and the concept is actually still very potential for bitcoin.