Twitter, Paypal don't really need to be that fast. Nor does Facebook. But do you think major banks on Wall Street tracking billions of trades a day in near re

Twitter, Paypal don't really need to be that fast. Nor does Facebook. But do you think major banks on Wall Street tracking billions of trades a day in near real-time would be satifisfied with these numbers? It all depends on what your users demand and what they will put up with.