[clarry]

> it's been a decade since the article so I wonder how it's working out?

What article? The actor model dates back to 70s much has been written about its various implementations and incarnations since then.

If you don't treat it like a theoretical model of computation (like Hewitt does), then what's left is various largely unrelated architectures that employ message passing, with various levels of granularity.

I don't think any claim about higher developer productivity can be made without specifying what it's being compared to.