Forex is interesting. I visited Turkey last winter and the lira was SO unstable. Like maybe one day 100 USD would get me 1800 lira, but in a 24 hour period I'd wind up with 900 lira!

Could I theoretically have traded a 100 usd, gotten 180 lira, waited for the exchange to drop to 100 usd = 900 lira, then traded the 1800 lira back to make 200 usd? Or am I thinking about this wrong?