<prompt> Human: Ive got way too much money in a money market account earning 1.2. Id like to invest the money in something with a higher return, but Im not sure that investing in an SP 500 index fund makes a ton of sense as the market is currently at an all-time high, and might fall in the near future if some political or economical event occurs. Should I wait for the market to drop to buy in, or just take the plunge now?  <response>: The market is almost always at an all-time high. If youre investing in equities, then your time horizon needs to be long enough to weather the inevitable corrections. Insert standard PF mantra about timing the market here.Now, if you are able to accurately predict the time of the next fall - congratulations! Enjoy your pile of cash. Im going to do my best to ignore the market until Im ready to retire. 