Ethereum Will Match Visa in Scale in a "Couple of Years"
 

Ethereum founder Vitalik Buterin notes that Bitcoin can process less than 3 transactions per second, Ethereum 5, and Uber 12, but in a "couple of years," his brainchild will match Visa's speed: once transaction capacity scale improves, Ethereum could complement Visa for certain applications that would benefit from decentralization and a shared memory. He hints that blockchain could be used to run games some day. Buterin doesn't think everything should run on the blockchain but many things can. As the technology expands it can grow to replace many services that require parallelization — that is programs that should run at the same time. "You could run StarCraft on the blockchain. Those kinds of things are possible. High level of security and scalability allows all these various other things to be built on top. Ethereum is a secure base layer that doesn't have too many features."

http://www.hardocp.com/news/2017/09/..._couple_years/