> At a company I worked for, we compiled a high-level declarative expression language of our own devising into SQL and other back-end representations, including English. Is that a "compiler" as many see it? No. However, thinking about the problem like a compiler problem gave us lots of insights into how to architect our product

Wow. Snap. Except we never got it to compile to English (well, we probably could have but the result would have had deeply nested bracketed clauses...)