It should actually be more like, will Visa adopt blockchain technology in the long run. I believe it will and one thing we have to understand is that being on the blockchain does not necessarily mean you have to be decentralized by all means, and I believe as time goes on there will be a lot of improvement with scalability, so one way or the other, I feel there is a whole lot that will happen when it comes to integration of most of the payment company with blockchain over time.