TLDR: don't trust anyone offering you a fixed rate of return, if it sounds too good to be true then it probably is. Great advice but very much over-complicated here.
I am agree with this. In any investment market, there is market fluctuation. I am believe every investment we made, there is profitable investment and some investment loss the value. I think we should not trust to people who offering fix rate of return or promising big profits
but sometimes there are still many people interested in that. by offering attractive offers they can still get victims. therefore logical thinking is the key to not falling into the trap