<prompt> Human: I was loaned some money 1000 in 1997 and I am in a position to pay it back now. Often, you hear the expression, Heres the money I owe you with interest. My question is, at what interest rate? How much should I pay back?  <response>: The SP 500 was in the 900s in 1997. Its now in the 1800s.So how about a cool 2000? If Id loaned it to you, Id be thrilled instead of just being reminded that I should be mad at you. 