What you're highlighting is also unsubstantiated. What is an average Go, C#, or Java program? I've certainly spoken with C# developers who find even moderate co

What you're highlighting is also unsubstantiated. What is an average Go, C#, or Java program? I've certainly spoken with C# developers who find even moderate combinations of error states too confusing to handle in Go since it lacks abstractions necessary to represent those states. And I've met Go developers who get horribly confused by overabstraction in C# programs where you need to chase down code across many different files just to know that A called B. But I don't think I could make any blanket claim about simplicity and how that impacts performance. The only thing I do know for certain is that performance work is hard, and all three languages come with toolkits to help you manage it.