Thanks for clarifying! I'm trying to push back against this notion that libraries are bad. That people should learn programming one specific way. I think this

Thanks for clarifying! I'm trying to push back against this notion that libraries are bad. That people should learn programming one specific way. I think this idea is often well-intentioned. For JavaScript, it has been "you don't need jquery" for a long time. And you probably don't need jquery, but I generally think you should feel free to use tools that help you accomplish your goals. I agree that learning concurrency primitives in c++ is useful and rewarding, but pedagogically I don't endorse any particular entry point to parallelism. That said, once you've found that you do need concurrency for your task, yes, absolutely learn the fundamentals. They're called fundamentals for a reason.