All markets are built on the old pumps just timing it so you get in before everyone and out before everyone which is easier said than done
Even market experts are unable to time the markets.
Fat chance to any of us trying to do that.
No one can certainly time the market, that's why there are always risks involve in investing. If you can correctly predict what would happen to the market, then you would have lesser to zero risks of having lost on your investment.
If you have enough money, you can try to corner the market by buying up a large percentage of the traded commodity (stock) and thus be able to set the price for it. For example, in the period of 2007-2010 Porsche, a car maker from Germany, managed to corner the market in the shares of another German car maker, Volkswagen, which caused the latter to become the most valuable company in the world for a short period of time...