<prompt> Human: Hello all,So I have around 300k just sitting in the bank from a recent inheritance.Would it be a good idea to pay off my current mortgage of around 165k 4.25 or invest all of the cash?Age - 26Income - 60kAny help will be appreciated.  <response>: If your house was paid off, would you go out of your way to borrow 165k at 4 to invest in the stock market? If not, pay the mortgage 