Back in the heyday of the Cray 2, I randomly wondered what could be done if the total processing power of a (then) supercomputer was thrown at providing a user

Back in the heyday of the Cray 2, I randomly wondered what could be done if the total processing power of a (then) supercomputer was thrown at providing a user interface. What nuanced details could be achieved? Today, we see the result (iPad 2 ~= Cray 2), brought into sharp relief with this article.