The fed agrees with you. That’s why they have an inflation target of ~2%. They’re basically saying outright that they expect to erode the purchasing power of the USD over time. It’s one thing we can count on - inflation might be bad, but deflation is worse.

I did a more thorough review of historical inflation, and the implications for investments here - cheers:

https://ramenretirement.com/2018/04/23/inflation/