Just curious since the last discussion I had was about gambling vs trading. I know trading can seem to be a bit of a gamble as well, but I see it a little bit like poker. It's a combination of math and psychology. Maybe not the same ratio though, just generalizing 
both trading and gambling has only a thin difference. but one shouldn't invest on any of these if they cannot afford to lose the money they are investing.
Well investment is a bit mild and you can set certain parameters to control it if you know your ways around it very well but gambling can be harsh and i would opt for trading any day if i was new to gambling.