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human
Writing Fiction: How can I plausibly make silver more valuable?

So I'm writing a novella: gold has been discovered on the moon and has flooded earth, so the value of gold comes down-- right. Now I also need the value of silver to go up and for it to become the new gold. Is it plausible to have people start to invest in it, making the value of it go up? I somehow need/want it to be linked to government issued pensions (I'm from the UK, does America have govt pensions? If not, ah well, it's set 300ish years into the future). I basically need elderly people to suddenly become super rich from the rise in silver....
gpt
>Is it plausible to have people start to invest in it, making the value of it go up?

Nah but why? "Just invest in it, the value will go up" seems like one of those statements that's somehow supposed to mean something but really doesn't. Ultimately things have value for the most part not because people "invest in it" but because there's some underlying reason.

Like, people buy company stock and that makes the price go up, but ultimately they only do that because they believe the company will grow for some reason.

Silver isn't *that* valuable for two related reasons, there's a lot of it (comparatively) and it's not used for all that much stuff. If you want a plausible explanation for a surge in the price of silver, one of those things has to change. Either there's a lot less of it, or there is some new technology or whatever that requires a *lot* more silver than what's in use right now.