When was the last time gold was traded for < $10? Not everything that goes up is surely to go down. At least not in a lifetime. Nobody really knows what's going to happen, that's market 101.
Everything goes to 0 eventually. The statement is true. Gold is obviously much less likely to go to 0 unless the human race is either on the brink of extinction or extinct, but when you're talking about stocks or currencies a huge percentage will go to zero in less than human lifespan.
Something as simple as Apple shares doesn't follow your pattern.
its not my pattern. its just the way markets work. of course it applies to apple as well as any other asset class. its just a matter of your time horizon and time frames. in any stock or asset there is time to be bullish, there is time to be bearish and there is time when no position is a position as well.