Someone asked, I answered. I am sorry if my take offended you. Being able to answer the question doesn't make me an expert.
There's a difference between probability and certainty. The forecast in the post above is not certain, it's only highly likely. Time will tell.
If you traded markets for a living or as a past-time, I'm sure you'd eventually come to see their movement being irrespective of news, world events or the latest spin from the Federal Reserve or politicians.
Markets move as a reflection of mankind's swings from mass optimism to mass pessimism. You can fight that reality if you like, but you'll burn through a lot of money proving you were wrong.