Bitcoin’s scarcity — the fact that there will be a maximum of 21 million tokens and that 19 million have already entered circulation — contributes to its value and therefore increases popularity. The fact that it is the original cryptocurrency, and the hype that comes with that, also helps, as does its value, which is more than double that of Ethereum.Bitcoin is also one of the most accessible cryptocurrencies since it is now available from most centralized exchanges, allowing fans to acquire BTC using little more than a debit card in many countries.