I’m not anti-GC. There’s nothing wrong with using a garbage collected language. However, if you use a built-in garbage collector, you do need to play by its rul

I’m not anti-GC. There’s nothing wrong with using a garbage collected language. However, if you use a built-in garbage collector, you do need to play by its rules, or it’s not going to work. These rules are language-specific and limit what you can do efficiently when writing an interpreter, versus writing your own GC that’s purpose-built. For example, Go’s garbage collector isn’t going to do as well at JavaScript as V8’s garbage collector, because the only unions it understands are Go interfaces. Also, the garbage collectors for other languages mostly don’t support some features of the Go language, such as taking pointers into the middle of objects. You can still write an interpreter in any language, but there will be an efficiency cost when the languages are too different.