I've also developed a couple interesting theories when trying to investigate and prove out some of the technical trading techniques I'm currently looking at.
Basically, the news traders and the technical traders have just as much "power" as each other. There are people who trade specifically on technicals and charts whom (rightly or wrongly) impact the market just as much (if not more than!) the news traders who are trading on fact. It's somewhat ironic in a way, but it appears to be true. For instance, a NFP report could come out with a huge negative surprise, however once all the news traders jump on board trying to short on the news, a (possibly even larger) group of technical traders will move the markets themselves by executing BUY orders once a certain resistance level it met, RSI becomes stupidly oversold, a MA is crossed, etc. - and then the pair will skyrocket upwards, even though, solely based on the facts and "logic" it shouldn't due to the bad news.
I guess what I'm getting at is that some people who only trade the news sometimes perhaps look down at technical traders, calling them "noise traders" and saying that their methods aren't valid, as they are not taking into account actual events and fundamentals. But in the end (again rightly or wrongly) it doesn't matter, and you have to keep in mind what the technical traders are doing as well, or else you might find yourself executing, what is in your mind, the proper trade on a news item, only to find the pair swing the other way and hand you a loss. Shorting a pair on a bad report? Well, when it drops and hits a key support trend line and automatically generates a ton of BUY orders, look out! 😉
I guess a good parallel might be the carry trade, i.e. a pair held artificially high at times due to what it represents, as opposed to what pure economic factors and news may or may not report.
Just some thoughts. I'd appreciate any feedback. 😎