Normally, greed and lack of composure are two attributes centered on ignorance. If you know you have what it takes in terms of knowledge to do it right, you will know when to always be in the market and when you should be getting out of the market. However, the fact that some really do not have trading knowledge but they want to trade anyway, makes them subjected to them gambling without even knowing and with that, the possibility of losing a whole lot is very much guaranteed.