<prompt> Human: Hey folks. Im nearly 24 and wanting to start a retirement fund so when I retire at 65 I have 1,000,000. I want to do it through a vanguard index fund. Any thoughts on which index to use, as well as info about Roth vs. Traditional IRAs? Is it one or the other? Or for example could my SP 500 index retirement fund also be a Roth IRA?Heres the numbers I was running:PV - 1610.51N - 41IY - 8Pmt - 285.58monthFV - 1,000,000  <response>: 1 million wont be much 41 years from now. You can do both an IRA and a roth. Also, at least in the future you may want to diversify and go more towards bonds. At 24 you can certainly be 100 stocks though. 