I think there's some hints.

• Administration costs have risen, food quality has gone down*
• Everything has become market based, inflation is built in and required in modern market stability models
• The very wealthy have learnt to extract more of the value share
• Residential land in good places is now scarce and so expensive, where it was abundant and cheap back then (because population has increased)

They seem to think Bitcoin would fix it, but Bitcoin is in the market, and is more volatile than cash

They seem to think gold has stable and intrinsic value

Of course what happened then was computers, they are the biggest productivity multiplier since the wheel, and I wonder, do we the workers deserve that share of our productivity that was provided by our employers' computers?

*That's contentious, some people think food quality has gone up, despite obesity rates now vs 1972