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 
From my personal opinion the difference between trading and gambling is that trading should be a constant thing. which is same amount of lot size, risk and take profit level. No matter what instrument or gambling risk is always present, so trading is more to a money management reducing the risk as much as possible but no matter what there is no 0% risk who tells you 0% for trading is cheating you. Trading and gambling can be similar in a way that you will lose back what you win beforehand but trading give you the edge of preserving your capital if you do your money management well and not over stretching or over trading.
In my own point of view gambling and trading are quite relevant and similar in terms. They can be profitable or the other way around. But trading is far better to do because if you are only mindful and careful you have a big chance of earning compared to gambling.
Its true that they are quite relevant in some terms. They are both fast in making your money big in an instant, and it also they are both risky.
That's the reason why I hate gambling because in gambling its 50-50. Your choice is just either you win or lose. You might have a bunch of money in an instant or you may lose money in just a second. All your hardworks will just go for nothing, if you bet all your money you might leave in casino with nothing.
Trading is more safe and convenient for me because I can have the control of my money. I just need to monitor the value of the cryptocurrency. And I can choose when I will trade it to become profitable from the value I have it.