Trading is somehow a bit of gambling , but at the end , and in the case of a loss , your loss won't depend on random parameters or just luck . Trading can go as smooth as possible according to research and how much effort and thought you've put too , it is much more safer and you got the upper hand on your money , whether with gambling , you got no hand at all and the fate of your money is a random output that you can't control by any means on earth .
Bitcoin trading is also like gambling that you need to invest, but the percentage you earn income using trading is much higher than gambling. In terms of gambling you may earn a lot of income but you can possibly lost high amount. However, in terms of trading you can possibly earn high amount of income without any losing of investment.
Any investment you do not understand is gambling. Anything you're not sure of but you do, means you're gambling on something uncertain. That's tantamount to gambling because most gambling is closely related to luck. Conversely, if you do invest from the things you know and you learn, then you'll know that the investment you make must be profit, and that's not gambling. Unlike gambling, you do not know whether you'll get a profit or not. You can lose and you can profit in the investment, but that's only in certain circumstances. I hope you understand what I am saying.