Re: "The Dismal Science"
I think micro-economics probably qualifies as a science by this definition. Many of Tim's articles here are simply applications to real-world problems of the bit of economics that works and it is a great pity that the politicians (including those who got firsts in PPE) often seem to have less grasp of the fundamentals than I do.
OTOH, macro-economics isn't even a thing, as far as I can see. It is "as many things as you have macro-economists". It really ought to have a different name entirely.