That person seems fairly lucid, and I don't disagree with much of what they're suggesting.
For a few years I've been looking for a high in 2007 or 2008 and a low in 2010-2012. The low range I've been looking for was 1350 NDX. I had not really had a good feeling for a low range on the SPX during that time. However, I can tell you I've had to ratchet it down a bit from 1161 to 1060.
Basically I am looking for the major indices to do a .618 re-trace of the rise off the 2002 lows to the 2007 highs.