I think OOP (precisely inheritence) makes programming more difficult even if OOP works for 80% of the cases. The last 20% are impossible to handle with that pat

I think OOP (precisely inheritence) makes programming more difficult even if OOP works for 80% of the cases. The last 20% are impossible to handle with that pattern and make a class hierarchy unstable. I think Smalltalk is the most productive language because of its VM (builtin IDE, DB...) and not because of OOP.