<prompt> Human: I understand that the indexes have been doing well for a quite a few years now and I hear a lot about the inevitable market crash coming in the near future.I have some cash that I want to put into index funds, and I wont be selling them in the foreseeable future. Would it be a good idea to buy the index funds now? Or is it more advisable to start investing after the next financial crisis? Thank you guys in advance.  <response>: Dont try to time the market. 