C# design team is ~5 talented well paid engineers who think how to improve language for past 20 years, every week and don’t let flawed features in and can spend years on how to add async/await, nullables, SpanT and many other features so whole language makes sense and is joy to use. And they have another ~20 engineers implementing features in Roslyn making sure performance of IDE and compiler is acceptable and bug ~free. Unfortunately not many languages can afford that…