Based on our present evolutionary progress (in terms of technology, ethics, and understanding of our reality), I'm leaning in personal favor of
October 2011 for the tipping point. Ancient cultures "in the know" have described history in terms of nine "underworld cycles". As we move forward
in time, each cycle moves 20 times faster, like shifting gears in a transmission engine. Each cycle contains 13 parts (think stripes on the US flag),
and the 13th "stripe" contains within itself the next cycle. All cycles end in 2011/12 (in other words, the near future as of this post), but
instead of experiencing the 13th phase we shift gears after the 12th phase and start a faster cycle.
Cycle 1 (Beginning 16.7 BYA): formation of 3-dimensional universe
Cycle 1 Phase 13/Cycle 2 (Beginning 320 MYA): complex cellular life
Cycle 3 (Beginning 41 MYA): mammals on the rise
Cycle 4 (Beginning 2 MYA): familial relationships in apes
Cycle 5 (Beginning 102 KYA): tribal relationships; seafaring according to NY Times www.nytimes.com...
Cycle 6 (3114 BC - 1755 CE): "modern" societies, writing, law, etc
(also 13 Ahaw, 3114 BC - 13 Ahaw, 2011 = 1/4 precessional cycle)
Cycle 7 (1755 - 1999 CE): Heliocentric model (sun recognized as center of creation as opposed to the earth), seeds of American, French Revolutions,
Cycle 8 (1999 - 2011 CE): Human Genome Project, permanent human presence in space (ISS), first nanotechnology, quantum computers, LHC
Cycle 9 (Feb - Oct 2011): All the badassery of the previous cycles combined. You do the math.
So even if the numbers aren't perfect, they reveal a consistent pattern as far into the past as humanity thus far has been able to observe. In terms
of physical matter, history is born in the past, but in terms of information, it is born in the future. Of course, no one knows exactly when the "big
bang" of information will be, and our conscious decisions change history all the time. Therefore, as much as we like to bet on a particular date,
it's just that: a bet. Americans declare Independence Day to be July 4, 1776 CE but her independence wasn't won in a day or in a year for that
matter; I'm pretty sure the war dragged on for another 5 years or so.
With that in mind, dates like December 12, 2012 are like a cosmic 1776: they are symbolic of a second renaissance that is ongoing. Maybe, hopefully,
enough people focusing on that date as a goal for change will bring about a self-fulfilling prophecy; I wouldn't deny we have the power to do it.