If the currency loses 8% of its value, one would expect the share of Apple stock to cost 8% more currency. So if my “return on investment” is 4% but the currency is worth 8% less, that means Apple’s value has changed in addition to inflation happening.
If APPL goes up 8% and inflation increased 8%, then your real rate of return is zero.
a pleb holding cash lost 8%.
This is not how it works. The working class does not "hold cash". They spend their cash, and their wage (hopefully) tracks inflation over time. It mostly does over the long run; we're in a period of high inflation, which is why it's on everyone's mind, but we're also coming off a period of remarkably low inflation since the 2008 financial crash.
Or like I said above, it hopefully tracks with productivity gains rather than inflation, which would far outpace inflation over the last 50 years.
I'll also copy a bit from another comment I made in the thread:
The loudest anti-inflation voices over the past 40 years haven’t come from the left. They’re right-libertarians railing about “Audit the Fed”. You should ask yourself why those temporarily embarrassed billionaires don’t like inflation. It’s definitely not because they have a sudden care about the working class on this issue.