Making Money From Calling Contracts on Anotherium

A block of transactions is mined every 12 seconds, and that's when the transactions are executed. So if you put it in order to buy something, while it's sitting there waiting to be executed, other things can see it. And if they think that your transaction might move the price something, they can just put in a transaction ahead of yours by paying a higher fee. That's classic front roning. But in a world of smart contracts, a bout can do something a little bit more strange. What it does as it looks at pending transactions and it tries for every one of those transactions,. It says, what if i accent this instead of insead of the person thats sen it