80
C++ should be called ++C
(sh.itjust.works)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
As a human ISO8601 is great. Ambiguity is far far worse, than having to read out a date aloud in an order any other than the order it is habitually spoken.