Irrespective of counting systems, narratively speaking the decade has to end December 2020.
Mostly because too many major transition events are taking place next year and those logically belong towards the end of a chapter, not at the beginning of a new one 🙂
@baldur sister.is is referring to 2020 as a Visioning year, which I really like. It's a transition period, a cusp, definitely not a beginning, but also not exactly an end.
@vasta For me, the real value is that I haven't had time to set a vision for the next decade yet. Taking a full year to do it rather than a few hours is really appealing.
