It is possible to buy Bitcoin and sell it at a higher price than the market price rate. But the thing there is what kind of people would like to buy at a higher rate that is above market price?Well, let me guess– traders or newbies? maybe one of them. I know some exchangers will buy from people at a price below the market price and then sell to others at a higher price rate.
He is not talking about overcharging newbies or other traders by selling them at higher price. What he is trying to say that there are differences in price on different exchanges. Buy from exchanges whose rates are low and sell in the ones where the price is high. What he is missing is that there are other fees which he isn't considering. And transferring coins from one exchange to another exchange takes time since there is a delay. During that delay the prices might change and he may suffer a lot.
That's how risk taker take their chance trying to do this arbitrage trade advantage, who knows what will happen to the coin value after buying it from one exchange and transfer it to another, the fee should be consider beforehand, right after that the time delayed in just a matter of minutes the price will change
and chances to lose your money is very quick.
