I know people out there who have invested a lot in gold under the belief that in the event of like complete societal collapse or hyperinflation, they could use it for purchasing.
I have the hunch it’s a scam, but I haven’t learned enough monetary theory, business, or economics to understand why.


Yes and no. If you order your “gold kit” off of an ad aimed at boomers worried about losing their houses, it is probably scammy.
If you’re very rich and worried, you could stash away a bit of bullion at your home. You’ll have other things of value you could trade on the black market of total societal collapse before you’d need to tap into that resource. If you’re not very rich, a gold bar is not going to do you much good because it’s a big chunk of change tied up in one item. You’re more likely to need smaller denominations, like coins or rings, to pay for stuff in the apocalypse. Or you need to learn to smelt metal. The scam of it all is that people with a financial interest will advertize gold as the safe resource in times of high perceived crisis when the price of gold is already high or rising. It makes much more sense financially to watch the market and buy when it’s down.
Gold is also something that needs the economy to come back before you ran out of other stuff to barter with. If our apocalyptical total collapse lasts a long time, gold will not be as valuable as drinking water, food, or shelter. Smokes (incl. vape juice) and booze might be more useful for a longer time.
I’m not rich and I’d sooner go down the prepper route than buying gold.