I am not talking about market value or price, but about real value.
You can keep going on and on about the same stuff. Is this some sort of enjoyment for you? Writing without any real substance just to feel like you've made a point?
There's no such thing as "real value" in this world. Each person perceives value differently, and the nearest thing we have to an "objective value" is market value, determined by concrete factors like demand and supply.
Let's me educate you a little bit.
Sure, for a hungry person food is more valuable than to a full one. For a person with a mortgage on their only house dollars are more valuable than to a person that has a couple of houses. For the first one defaulting would mean becoming homeless. So getting dollars for satisfying debt owed a bank is as important as food to a hungry person. That's real value, and of course, it is subjective.
Market value or price, on the other hand, is just the ratio that tells you how much of one item is exchanged for the other. If someone trades a Ferrari for a Monopoly bill with the number "1" then the market value of one unit of Monopoly money is 1 Ferrari. So it's just a ratio. It has nothing to do with real value. Monopoly units just like Bitcoin ones hold no items capable of satisfying human needs. So, in their case there's nothing to be subjective about. There's no real value.