John McAfee: Don't hate Bitcoin, but Bitcoin is not the future of cryptocurrencies

John McAfee tweeted today: Do you ask me if I hate Bitcoin now? of course not. But Bitcoin is not the future of cryptocurrencies. You always knew this. You just want to ride the wind. Cryptocurrency is the key to our prison. He also said that the future of cryptocurrencies is privacy coins, smart blockchain contracts and distributed, decentralized exchanges.