<prompt> Human: Friend told me about how hes invested in BTC. What I want is a way to make money without working. I already have a 401k and work full time. I want extra play money. Because BTC rises quickly but also can drop quickly, I wouldnt keep my money invested in there til retirement, so it seems like a better way to make money faster, than waiting on an index fund. I dont want 2 retirement funds, I want a retirement fund and a quicker money maker. For my purpose, is it better to invest in BTC than an index fund?  <response>: Read the side bar articles on investing and come back with a coherent, targeted set of questions if you still have any.You post indicates youve done no research on investing whatsoever. 