[quickthrowman]

It should read “If I was alive in 1923 and invested $8M in 100y bonds that return the exact rate of inflation, I’d have $140M today”

Plugging it into a USD inflation calculator checks out.

[jldugger]

Unfortunately we don't have such a thing. Especially in 1922, we didn't even have TIPS, or 100 year bonds. The best case scenario you're looking at something like 10 year treasuries at 4.3 percent[1] in 1922. Shorter durations will help match dramatic inflation moves things get weird in the great depression -- a bout of 10 percent deflation happened in 1933.

    [1]: https://www.multpl.com/10-year-treasury-rate/table/by-year

[bobleeswagger]

$8 million in cash will always be $8 million in cash. "Stashed it away" is pretty vague but cash is cash.

[tarboreus]

Only if you literally mean physical cash. Banks offered pretty significant interest rates historically.

[kgwgk]

Why say “stash away” if not to suggest the literal “hiding the money somewhere” meaning rather than “opening a savings account”?

[jldugger]

With the slight caveat that the FDIC wouldnt exist until a decade after you put your money in and in no case would it protect all 8 million dollars.