Gold is actually really good at transferring and measuring value. Think about what a "good" measure of value would be have. It needs to last over time, not corrode or dissolve to the forces. It needs to be distributable, Divisible.. to be ubiquitous. Hard to create/refine, hard to find, so supply can't easily be inflated. It doesn't matter what the object that is being used for exchange of value or holding value, that's why you can trade and barter random objects. But if you condensate down the properties that make a GOOD money, then gold is more than just a shiny metal. "The amount of value in the world is increasing so you want to exchange medium to grow with it.." we find more gold every day, so there is an easing already happening naturally. And even if there wasn't, imagine having an exchange currency that literally never inflated... that's GOOD. We have been hoodwinked into thinking that we need inflation to keep up with goods and services, literal stockholm syndrome taught by the FED.
Hold on - you say "we find more gold every day" and then go on to suggest that the money supply doesn't actually need to keep up with economic growth?
If we had the technology to maintain 0% inflation, we would do that. We can't, and rather than risk deflation we instead target low positive inflation. This is because deflation leads to nightmare spirals where people start stuffing money into their mattresses instead of investing in useful things because holding has risk-free guaranteed returns that the unpredictable real world can't match.
The amount of gold being mined is not sufficient to keep up with economic growth and gold is therefore inherently deflationary. It's not a good way to store value, because a coin that's going to double in value over two years or whatever is obviously not a stable store of value.
You can argue about corrosion resistance or whatever other physical properties gold might have, but unless the civilization collapses you will find just as much luck storing your wealth in the database of a major bank. Needless to say, designing a civilization around the idea that it could collapse at any moment is unnecessary and expensive.
> And even if there wasn't, imagine having an exchange currency that literally never inflated... that's GOOD.
I fundamentally disagree. Value comes from building stuff not from hoarding. I maintain my intense dislike for gold. And I grant that it had the property of having most people on this earth consider it the peak of value. Sure common belief is a useful property. But I disagree that it's a positive outcome or that there couldn't be many many other variations except gold.