Re: Currency is not the same price, you can buy low and sell high profit?
Recently, the price of Bitcoin has fluctuated sharply, and arbitrage windows have appeared on many exchanges. The price of Bitcoin on Binance is US$47,000, while on some exchanges in South Korea, the price of Bitcoin is US$51,000. If you buy in Binance and then sell in South Korea, you can make a profit of $4,000. I am considering doing this. I want to hear your opinion. 
Exchanges in south korea won't let everyone to make an account there. You can try if you have an account in both exchanges but in most cases arbitrage does not stay for long and before your coins are deposited and confirmed, the opportunity is already gone.