I’m in the mood for revisiting an over-10-year old issue.
It is now 2014, and when does the decade of the Teens end? Of course it is December 31 of 2019, and the new decade of the Twenties starts with January 1, 2020. And that is clearly how all the decades work. Yet, back in 1999 we were told we had to wait for 2001, and that there was this huge decade/century/millennium mismatch, supposedly “because there is no year zero.” Thus we were told by the pedantic. Supposedly, Arthur C. Clarke’s “2001” has that name for the same pedantic reason.
Well, the pedants were wrong. Here’s the right answer.