Yeah, I think that's the way... Dart does this well with Isolates[1]. The language is basically single-threaded but you can start Isolates that run on different

Yeah, I think that's the way... Dart does this well with Isolates[1]. The language is basically single-threaded but you can start Isolates that run on different Threads but have their own independent memory, and they can exchange messages, much like in the Actor model. Not having to worry about real shared memory between Threads as in C++ or Java is incredibly liberating. As others point out, however, for extremely high performance that's not the best solution, but for nearly all applications, including emacs, the Isolate approach is plenty good enough. [1] https://dart.dev/guides/language/concurrency https://dart.dev/guides/language/concurrency