I'm not sure if you (or other readers) are familiar with the quote, but the title is a pun. When Caesar crossed the Rubicon river and marched on Rome to declare himself emperor he supposedly said "The die (like dice) is cast (thrown)" -- either he would become emperor or perish trying.

In the case of t article, the Rubicon has been crossed, and also features "cast" into the silicon can't be fixed (most of the time). But you're right, they aren't actually cast.