To me it seems that hardest part about predictions is the timing. It's not too hard to understand the macro economic trends and to see which way the wind is blowing, but it's very hard to know when it will happen and how quickly it will happen.
That's why day trading is gambling. The long term buy and hold, and the averaging down strategies will make you money, as long as you understand mid to long term direction of the economy and invest accordingly.
Actually if there's any one lesson to be learned from the last dozen years of the stock market's swings, it is that "buy and hold" is dead as a useful investment strategy.
As to gambling vs. trading, there's a whole industry of people who train traders in eliminating the gambling psychology that can destroy equity so quickly. A short time frame only exacerbates the psychological weakness.
Oddly enough successful day traders, that is, those who hold their positions for mere minutes and close out all positions by the close of the trading day, are about as far from gamblers (in a psychological sense) as you can get.
Actually if there's any one lesson to be learned from the last dozen years of the stock market's swings, it is that "buy and hold" is dead as a useful investment strategy.
I might have misused the term buy and hold. I meant to ignore the intraday swings and keep your eyes on the overlying trends. I certainly don't think you can blindly hold an index fund these days and plan on retiring on it.
My 401K's in a 'LifePath' fund- more-or-less an index tracker which shifts more weight from a stock index funds into bonds as your nominal retirement day approaches. It's quite possible I'll come to regret it, but I can't think of a safer approach.
That's why day trading is gambling. The long term buy and hold, and the averaging down strategies will make you money, as long as you understand mid to long term direction of the economy and invest accordingly.