What do you mean "does science accept statements"? Science worked out that this happens. Yet to be accepted as science (or even to call a halt to the project) it needs to be conclusively shown to OTHERS. You're misinterpreting. It happens, but is still required to be shown to others. And "sometimes more consistent" Er, run that by me again... Oh right, because everyone knows tha all companies run on scientific methods... Please Register or Log in to view the hidden image! Way off-course. Whatever your point was meant to be. Who said anything about "perfectly"? If the engineer can't back up his statement then the CEO won't listen to him. In other words despite his feelings the chances the project will go ahead. All experience does is give you a chance to be given the time to back up your gut feeling.