That, and you can ask it to translate literally or colloquially, to summarize or explain about acronyms, cultural references, names, code, syntax, diagrams, graphics, or anything else.

GP: If you're going to play a curmudgeon, at least get some first hand experience with what you choose to complain about, otherwise your curmudgeoning isn't very effective, and you complain about things that aren't actually problems, and miss out on complaining about real problems.

I love to hate and complain about Unix and X-Windows and C++ and GCS, but that's because I've used them, not because I succeeded in avoiding them.