Profitability

There is no need for high financial intelligence to identify the profitability potential. You only need to educate yourself and learn some technical analysis plus read the important news. On Forex, profitability is summarized in a few ways. 
First of all, to trade you do not need to be a millionaire. Opposed to many markets, Forex lets you start trading with the very low capital. Depending on the type of your account and your broker you can open positions even at around $25. 
Surely you ask yourself, "What can I do with this little money?" Forex does not require much investment because it allows you to apply a Leverage (the amount of money the broker contributes towards your trade in a transaction). Which allows you to create new opportunities for tens of thousands of dollars while investing very smaller amounts of money yourself. Which means that Forex has the potential for profitability and also possibly loss of tens of thousands of money in one day.
But bear in mind that you need to have a very good money management to be able to be a successful trader. 
Another characteristic of Forex is that no matter which way the trend goes there is always an opportunity. It does not matter whether a currency unit falls or rises. There is always room for making a profit because you always have a choice of buying or selling. Unlike your stock exchange, you are not limited to working on high-risk stocks. 

It's important to keep in mind that with all the profits that Forex has it has its own risks. You should be aware of its risks and never risk the amount of money you can not lose.