The 21 million cap fixes the quantity, not the demand curve. Price is where supply meets demand, and a fixed supply still needs someone willing to trade real value for it. Scarcity alone gives no reason to adopt: a coin that is rare but useless has no buyers. The cap's power is negative — it guarantees no inflationary dilution — but the positive case must come from actual utility, liquidity, and willingness to pay.
The 21 million cap fixes the quantity, not the demand curve. Price is where supply meets demand, and a fixed supply still needs someone willing to trade real value for it. Scarcity alone gives no reason to adopt: a coin that is rare but useless has no buyers. The cap's power is negative — it guarantees no inflationary dilution — but the positive case must come from actual utility, liquidity, and willingness to pay.