Guys the super real problem is how to trasnfer back the stuff, if you don't find a way to transfer back we are fucked up.

I don't know why there are videos saying that the simple thing is when you sell at the expensive exchange in profit, you convert again to BTC ans trasnfer back to the cheaper, and repeat the process all over again.

https://www.youtube.com/watch?v=c3oOy_2U5vg

https://www.youtube.com/watch?v=pCFcIWc6-TI

In which world that does make any sense? I did it and it doesnt work