If it were a digital currency with economic backing, then it would have value. Crypto has no such economic underpinning. It's all just evangelism and whim, which is why its volatility is so feverish.
Part of the value of gold,for instance,is the cost of extraction.
I remember that you dont buy into the concept of crypto 'mining',nonetheless,it takes an investment to remove the value from the source to your own account.
Once in your account,you have something that people want and you can sell for a premium.
Iron ore is just dirt.You invest and open a mine,load the dirt on a train and send it to the port.
Once it gets to port,people pay millions to own it.
And I get that it has utility,but still,you extracted something from the earth that people wanted and assigned value to.This is the 'economic backing' that BTC has.
