Cryptocurrency has not disappeared but has been absorbed by mainstream finance. BlackRock's Bitcoin ETF holds over $90 billion in assets, stablecoins like USDT and USDC handle trillions of dollars in transactions annually, and companies like Circle and Stripe have launched their own blockchains. These developments signify that cryptocurrencies are evolving from a niche movement into a core financial infrastructure, with their ultimate success hinging on integration into everyday payment and settlement processes to make them seamless.