Yes, and plus you get type safety with all of that! When I'm writing in D, my editor marks all the type errors (and typos) in my code, almost as fast as I make

Yes, and plus you get type safety with all of that! When I'm writing in D, my editor marks all the type errors (and typos) in my code, almost as fast as I make them. The DMD compiler is so quick that there's almost no lag. This leads not only to a rapid development cycle, but a much higher level of reassurance (than I've had when writing, e.g., metaclass hacks in Python).