The market will eventually stop doubling every month. It's hard to predicted when that will be, a month in advance. Getting the timing wrong can be disastrous.

The market will eventually stop doubling every month. It's hard to predicted when that will be, a month in advance. Getting the timing wrong can be disastrous. The market will eventually become saturated with efficient traders. For an efficient trader, this is easy to predict because it is accompanied by a slow decline in margins. You just have to be able to stop when you can't beat the market any more.