Back then gold went from $35 per ounce in the early 70s, to about $800 by the end of the decade. That is a 20+ fold increase, which if repeated during the 2020s...
The end of the Bretton-Woods system in 1971-73 (ending convertibility between the US Dollar and Gold) was a one-off and isn't going to happen again. Not unless another globally-dominant economy decides to impose a "Bretton-Woods-II" also based on gold exchangeability.
The early 1970 gold price action you refer to did not exist in a vacuum; you accused me of not knowing of the 1970s but conveniently ignored the impact of the Yom Kippur War and the subsequent Oil Shocks. You also conveniently ignored the sustained inflation which endured throughout the 1970s.
...would see the gold price reaching $50,000 per ounce before this decade is over, and there was a hell of a lot less debt back then compared to now.
The US Federal Reserve and the ECB have been ZIRPing, QEing and "injecting liquidity" into the system non-stop since 2008; even in this ultra-accommodative "helicopter money" environment gold spot only went from ~US$835 late 2008 to peak at ~US$1,895 in 2011.
Between 2011 and 2019 gold spot has been hovering/channelling between US$1,100-1,350 despite QE and ZIRP being sustained. Only the emergence of COVID-19 pandemic and the associated widespread economic disruption precipitated the current price break-out beyond US$1,500.
These observations would suggest gold bull runs do not occur merely in the presence of ultra-accommodative monetary policy, but require a trigger composing by one or more external factor(s), leading to market sentiment (fear>>everything else) thus inducing demand for the ultimate safe-haven asset (gold).
How much fear would correspond to a world paying US$5,000 for an ounce of gold?