Vitalik Buterin, speaking at TechCrunch Disrupt 2017, indicated that the platform has the capacity to change much of what is known about data and security. His comments included a strong indication that Ethereum will have the transactional power to equal Visa in the next two years. Buterin said:

    “Bitcoin is processing a bit less than three transactions per second. Ethereum is doing five a second. Uber gives 12 rides a second. It will take a couple of years for the Blockchain to replace Visa.”

https://cointelegraph.com/news/vitalik-buterin-ethereum-will-have-visa-scale-transaction-capacity-in-2-years