thanks for your opinions.
it s not about not-paying-me back at all. friend wants to pay but we cant agree upon which Price.
i mean 1600 Dollars is way too much. that s why i prefer Bitcoin. you simply just cant compare it to dec 2016. asking for that price is hilarious.
my friend has btc maybe 0.6 or something like that which would then be one sixth of his net-worth acquired by trading in the last 4 months.
but it is still the equivalent of 1600 Dollars right?
Then what you can do is, just ask for the same amount of BTC that he borrowed you a year ago. You don't need to consider the dollar value today since as you've said he is also trading so he should know what is the value of BTC and he will now get the funds to pay you from his fiat resources.