the summary of what you have emphasized so far is based on understanding anyone who makes a research to know the consequences of what is doing cannot be a victim of loss in Trading.
I think they can still be a victim of loss as losing can happen to any individual when they're trading. Trading comes with losses and victory as you can never be without losses when you trade but you can be without wins as you aren't using the right information to trade. You can hear a fake rumour but think it is a real news and use that information to trade but lose since the it's fake. I haven't seen a trader that say he hasn't lost but there are many traders that haven't been fortunate to wim.
The wise traders with this problem of not winning will quit trading to look for other thing that they can do and be winning since they can't get one trade correctly. What I think he is saying is cryptocurrency is the future and trading can make you profit if you're a good researcher that does your research properly as it'll always be helpful when you want to trade.