Why tho?
In the last 18 months the Turkish Lira lost 36%, while a return of 50% per year would mean a gain of around 87% (=1.5*1.25). Then you need to pay taxes.
If we don’t consider the risk (risk of default considering the very high return, and FX depreciation which wasn’t known 18 months ago), he would have made money out of this. Or I’m missing something big?