finality,
Hi,
Without a fairly precise definition of "big shift" I would offer that any significant event that occurs within the rather vague time frame you say has been suggested could be claimed as 'the shift'. For myself, that could be equated with charlatanism.
Cheers, (the end of things as we know them at this moment will come when it does; which is actually just the next moment). How much we make of this may help define what amounts to a big (or little) shift).
lol
RC