You couldn't have got CSP from writing a web server API to run with V8. To get CSP you needed green threading built into the runtime, and that's a much taller

You couldn't have got CSP from writing a web server API to run with V8. To get CSP you needed green threading built into the runtime, and that's a much taller order. So it's hard to say that the not-critizing-directly Dahl should have learned from the past. We'd probably never have heard of him if he'd set out to build a new esoteric CSP language or runtime, just like we haven't heard of anyone around that time other than the golang team.