When it comes down to it, it doesn't matter who or what is doing the trading, it's still all based on supply and demand. Any day the Dow moves 100+ pts then there is a supply/demand issue within that trading session, it is not a bunch of computers screwing around sending us to intraday extremes. I make all my money on trend days, I try to avoid chop days because it is all program trading bullshit. I'm not saying you can't make money when it's a choppy day, I know many people that do, I just know that I cannot, and the bottom line is that as long as the market still exists there will be trend days when money can be made without "the machine" hunting stops.