scarcity is not what gives value to btc. every piece of granite in this earth is unique and nobody gives a shite. second point is, a ponzi scheme is a unidirectional flow of money, theres no economy there. btc cost money to mine, btc is 3 things: 1) a system with immutable economic laws 2) a currency unit 3) the implementation: biggest decentralised network in the world, the safest network in the world with just 2 events of downtime since 2009   good luck finding a network with that track record.
Spain