boss: how confident are you in your analysis? dilbert: very confident. boss: good. dilbert: unless i used the wrong discount rate, which is hard to know. boss: but otherwise, it's solid? dilbert: except for the installation and maintenance costs, which are wild guesses. and we don't know if we sized the project right, so costs could be double or triple. boss: it sounds as if you applied math to a bunch of wild guesses. dilbert: yes, but i got the result you wanted. boss: next time, just say that.