If I aim at the bullseye I may miss, but I can be fairly sure my dart will hit somewhere on the board, and even if I’m having a particularly off day I can still pretty much guarantee that it will at least hit something in the pub. When mathematics goes wrong the consequences can be more severe, rather like the dart missing the bullseye, the board and the pub, and hitting a three-toed sloth instead, somewhere in the Bolivian jungle.
