I hear many says that its impossible. I don't know why?
If the saying is for novice, fine and agreed. But, traders who got some experience, learned from their experience, minimizing or get rid of their mistakes and faults could make this return.
Since, I haven't tried any other instruments but cash market. I feel that its possible to make average of 2% every day.
I think we can make a thread and ask traders to poll whether they are successful in day trading.(be it cash, derivatives or commodity). With some eligible criteria, like traders should have traded atleast of 1year in day trading etc...