Mayhaps an example.... Pick your favorite commodity, how's tulips, I like tulips.
I deposite a bitcoin in your bank, which on the day I deposit it happens to be worth a tulip bulb. You charge me a fee. You take my fee and, with some black box inhouse currency mumbo in the middle, buy something less than a tulip bulb (you only have less than my deposit in fees, and my deposit is worth a whole bulb, so you can't possible buy a whole bulb). Over time, your less than a whole bulb appreciates and becomes worth a whole bitcoin. You sell your bulb, and now have a bitcoin. You pay me a share of the gains in interest. I now have a bit coin and then some. Sadly, my bitcoin and then some can't buy a whole bulb anymore. So even though I have more bitcoin than when I started, I can't buy as many bulbs, and as I said, I like tulips.
Nope - Let's not use non-referentials for examples, as that just becomes messy.
Let's start with the BitCoin. Bitcoin has a Speculative Value, not a Real Value. It's worth nothing if the currency is not there.
Now say you have a dollar bill, or a euro coin. You can use those anywhere to buy anything - as they have a Standardized and Intrinsic Commonly Recognized and Known Value.
A dollar is a dollar.
And though a bitcoin is a bit coin; the dollar will be there when the power goes down. The dollar cannot be hacked and is not succeptible to a virus.
But, now let's assume that your 1 dollar bought 1 bitcoin. and tomorrow the bitcoin was worth 0, and the dollar was worth .50 cents. Better to have the dollar. Or let's say that your computer crashed, or the power went down, or your battery lost it's charge - you could take out the dollar and pay.
Now - let's say that you knew the Dollar and the BitCoin were susceptible to going up and down; you would choose the one that has REAL VALUE to STORE the VALUE of the that thing. Liek putting a penny in the piggy bank. Tomorrow it WILL be there.
So, now let's say that your 1 bit coin went to a Unit that was linked to something entirely differently. Let's say copper. And let's say that your 1 bitcoin could buy you 1 Ledger Share of Copper, at YOUR Chosen Currency. And it gets recorded.
Tomorrow there your computer crashes! All your coins in your bitcoin wallet nice and safe, but no way to access them! The networks are down, and a massive network attack has started on various serves causing downages. your Bitcoin, just like MY BITCOIN - Are worthless.
But I could pick up the phone and call BGMCO, or send one of those paper letter things, or a fax, and say SEND ME MONEY! And - We Would.
Thanks for your comment! And sorry, but we have no tulips today (insert polite chuckle).