> PayPal collects fees. So do miners. Again, you haven't really given me any specific use cases, you've just made some vague statements about how blockchains

> PayPal collects fees. So do miners. Again, you haven't really given me any specific use cases, you've just made some vague statements about how blockchains will revolutionize everything. If you mean smart contracts, they can be done more efficiently with a centralized service, without using a decentralized blockchain.