Sorta. I'd have preferred to see an example or two.

The problem is that "sequential" vs. "concurrent" isn't solely an implementaion choice. It's a property of the problem. Some problems are inherently sequential, and can't be meaningfully scaled to an arbitrary number of cores. So color me skeptical, basically. Concurrency is hard because it is hard. While there may be a paradigm out there that makes it less so, I'm going to need to see it in operation before I make any judgements.