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I'm happy to see it to be honest; at this point C# is 25 years old, and since then there's been a lot of innovation and development in programming languages and ecosystems (as well as 10x more software developers, at least - I am guessing at this number). Current-day programming languages, including Go and Typescript, will have had a lot of learnings from C#, including in things like generics and the like.

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Go is a step back in key areas: generics, nullability, functional constructs, concurrency. The praise of the latter in particular is egregious. Surely we can do better than having to wire the transfer of data and forking/joining the logical flows manually in 2025? The concept of virtual threading in Go, despite having nice implementation, did not progress much from what we’ve had 10 or even 20 years ago either. It can be more convenient than async/await with hot-started tasks/futures if you predominantly are dealing with sequential code. But for highly concurrent logic working with goroutines is more ceremonious.

Communicating Sequential Processes (CSP) makes it a lot easier to reason about concurrency. It may be old (1978) but is foundational.

"Go is not meant to innovate programming theory. It’s meant to innovate programming practice.”

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