To give an analogy (not a great one, but a reasonable one), think of reflection on the JVM. Is it something to use all the time (even if it was fast)? No. Is it

To give an analogy (not a great one, but a reasonable one), think of reflection on the JVM. Is it something to use all the time (even if it was fast)? No. Is it incredibly powerful and incredibly useful for certain classes of problems? Yes. Is it a strong advantage for languages with reflection vs those that have nothing comparable? Yes.