>>19He said gold is a stable medium for storing value.
Gold can be exchanged for dollars(or whatever paper money exists), but you can't print more gold.
Gold reserves are limited and scarce. Paper is not.
Dollars(paper money) are essentially like pokemon cards with agreed upon material value. If pokemon fad dies out or the marker becomes saturated with the cards, the pokemon cards lose their value.
There a couple of nuances here. While gold is stable medium for storing value it works within a civilization that has use for gold(jewelry,coins,tech,etc). If a civilization collapses, the value of gold vs material objects will plummet(tools, batteries and food become more important).
Gold value is preserved under local crisis, as long as trade networks work. When trade is disrupted, the prices and barter systems change to value more immediately useful goods.
Gold is valued at what it could be traded for - the subjective idea is that gold represents 'scarce resource' depends on its non-currency value(as decorative/jewelry) which is culture-specific(a culture could favor large seashells instead).
Gold also has problems as moving and storing it has non trivial difficulties and security risks, while money can be electronically transferred worldwide and stored in small wallets.