Nah, not at all. Markets move in complete random directions. Why the market is up today but will be down tomorrow has nothing to do with really much of anything. In the short term, nobody can predict where prices are going for anything. In the long term, prices move according to their fundamentals. So where exactly is the "self fulfilling prophecy" when it's obvious no one knows where prices are going from 10:33 AM to 10:34 AM, or from 9:30 AM to 4:00 PM, or from Monday to Tuesday, or from Monday to Friday, or from the 1st of the month to the 31st of the month, yet fundamentals dictate from 2000-2011?
It's not a self-fulfilling prophecy. If it were, people could play off the levels you're talking about and we could all be rich very, very fast. The truth is, the "prophets" (aka day traders) lose more times than they win--their losses are just limited because they bail out at the first sign of trouble and they hedge their bets. Their goal is to lose 2% 5 times so long as they can win 20% one time. So if they win 1 out of 6 times, they're successful.
If TA had any credibility, the people playing the game would win with better odds than rolling a die.