[gpm]

Eh, that's nitpicking. "class Stack<T> { void push(t: T); T pop(void); }" is not too abstract, and has been written down many times.

[wyldfire]

Yes and no, I guess if that's what they meant then yes I was nitpicking but I took it literally (lots of folks confuse concepts between patents, copyrights and trademarks. Less common on HN but still happens. )