<prompt> Human: So Im sure this isnt possible but, let me give you my reasoning with the little knowledge of credit cards I have, Is this even possible? Hypothetical situation.Guy with excellent credit rating opens his 2nd credit account getting a rewards card with 1. He will always pay off balances the same day as they are charged with his cards, both cards have no annual fee.100 charge on Credit 1 gets 1 cash backPays off Credit 1 and gets 1 cash back so he earned 2 cash back on that 100 spent right?Gets 3rd card to pay off Credit 2 getting 1 cash back. So we are at 3 cash back.We can do this all the way the chain until get cant get anymore credit cards. Remember every card would have no annual fee and he will always pay the balance of the same day so he will never be charged interest?  <response>: You only get cash back on purchases. You dont get it for cash advances or balance transfers. 