Forex Intraday trading - Is there is someone that really earns?

Hi guys,
I see a lot of long term trader that earn good money with many different system but exist trader who earn in intraday? I've never seen one... Its a coincidence or its the truth
Sorry for my bad english

Source.

 

Understanding the currencies that you buy and sell makes a major difference. For instance, a currency might be bobbing upward after an enormous fall and urge unpracticed traders to "attempt to get the base." The currency itself may have been falling because of terrible business reports for numerous months. Okay buy something to that effect? Most likely not, and this is a case of why you have to know and comprehend what you buy and sell.