A physicist, an engineer, and a mathematician are tasked with opening a beer bottle using any means necessary short of an actual bottle opener. After several hours, the physicist has taken x-ray spectrographs and done material analyses, and deduced the exact spot of the bottle's neck to strike at the exact angle with the exact strength such that the forces would cause the cap to pop off. The engineer took slightly longer, building a hydro-pneumatic machine capable of holding the bottle, gripping the cap around the edges, and pulling it up off the bottle. When the mathematician was checked up on, he was found to be going on his second case of beer already. When asked how he'd gotten his bottles open so quickly, he replied that he'd merely assumed they were already open, and proceeded from there.