This is a great question that I see everywhere in programming and I think it is core to why you measure first when optimizing. You generally shouldn’t know or

This is a great question that I see everywhere in programming and I think it is core to why you measure first when optimizing. You generally shouldn’t know or care how a built in is implemented. If do care, you’re probably thinking about optimization. At that point the answer is “measure and find out what works better.”