Investing is an endeavor that is better started while you are still young. In order to grow your wealth, you're going to need time, so you should act ASAP.
What is short selling? Short-sellers are often frowned upon for the strategies they employ. But really, they're just using the market to their advantage.
Musk's ultimate dream is to establish a "self-sustaining civilization" on Mars and become the first person in history to organize a mass exodus from Earth.