The next big programming language feature after closures

I wonder if the author realizes how funny this title sounds.

"A testament of how effective aggregate operations is demonstrated by the success of the array-oriented languages APL, J, and K. "

This must be some new usage of the word "success" of which I was previously unaware...

Compared to the aggregate operations mentioned in the article, I think virtualization techniques and primitives would be more useful as language extensions.

I sure am glad those Java boys (and girls) are there to drive the state of the art in programming language /sarcasm.

He almost got there on the end. Concurrency.