I think it's a good step for exactly the reason you suggest. In a world where resource sharing happens uncontrollably it's maximally difficult to design good co

I think it's a good step for exactly the reason you suggest. In a world where resource sharing happens uncontrollably it's maximally difficult to design good concurrency. In a world where sharing is totally eliminated, it's trivial to be concurrent but boring. Working back toward greater sharing from the share-nothing viewpoint is a great place to throw effort.