Previous post very well put. 

A very large number of people, alot of them on this board, are about to realize how much money they've effectively lost.  Not a single transaction for a preorder or asicminer products or anything in the last several months has been worthwhile that i have see.  This effectively means that a huge number of people 'didnt see this coming' despite many of our warnings.

It cant continue indefinately, no, but by the time difficulty flattens, thy'll be very little money being made, so it might as well continue.. Theres little difference in this case between asymptotic growth and a flatline at some intolerably high diff..