Is this just the equivalent of saying "Hey, REPLs are nice when you're trying to figure something out", but spouted off as some deep programming wisdom? Like,

Is this just the equivalent of saying "Hey, REPLs are nice when you're trying to figure something out", but spouted off as some deep programming wisdom? Like, folks... REPLs are really nice when you want to figure out how a function or module or whatever works. Then yeah... you can take that knowledge you gained and apply it to your work. Like.. how is this a deep profound revelation for folks?