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Except when you suddenly do need performance and predictable latency but all your software is written in python. Its always funny how these performance requirements just creep up on you like that.

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C# is GCed but has 'unsafe' blocks.

Alonside value types, manual memory allocation if needed.

Not all GC based languages are made alike.

Yup, and (monomorphized) struct generics, first-class SIMD vectors and ability to transparently work with memory ranges because Span<T> can also wrap T* + Length from unmanaged code, which lets you directly plug whatever data you got from C/C++ dependency into most CoreLib APIs.

In this regard, Go is far inferior as a systems programming language.

Yeah what we really need is a GCed language that allows you to implement parts in no-GC mode. And ideally where you can iteratively migrate GCed parts to no-GC parts when required.

Anyway, Python is not a good comparison, as performance is not one of its main qualities.

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