Certainly there’s a lot of credit due to “lessons learned” - but they key part is that the main lesson learned was to prioritize spot change flexibility over a

Certainly there’s a lot of credit due to “lessons learned” - but they key part is that the main lesson learned was to prioritize spot change flexibility over a “pluggable” model of extensibility enforced with a type system design and rigidity. Any smaller scale tactical improvements in code structure paled in comparison to that core property.