Aron
To become a billionaire , you must have a billionaire ideas. You need to know how to convert your ideas into cash.
Jeff
Whatever you do stay away from the stock market especially now, price swings are ridiculous. Prices of a stock go from $10 all the way up to $15 then back to $8 within an hour for no reason whatsoever other than manipulation. Your best bet is to create a product or service that solves a big problem for people and that is Affordable so everybody can buy it.
zeno
Marry one. Invent a new product and market it,
Make lots of good investments, etc etc etc ...
Anonymous
by honing into what your good at and using it as a tool to market yourself & the product, but you have to know yourself very well to know your talents and taking risk and having a goal
positive thinking makes a big difference as well and not giving up when it gets tough
ineedacar
Find a problem that everyone faces in their lives, invent a solution and patent it. Sell the patent to manufacturers in the field related to the problem. Quite literally profit.