Happy New Year 2010 !!!!

[flippyshark]

If you give the calendar a theoretical year zero (and why not), then you can consider it mathematically a new decade. By way of analogy, we humans have a year zero, our first year of life, and on our tenth birthday, we have indeed entered our second decade. I see no reason not to extend this way of reckoning to the calendar, and thereby end years of tiresome debate about it.