The bowl dropped to the ground, shattering into some number of pieces that noone would ever be bothered to count. Milk spilled across the floor, stopping sometime before it was uniformly distributed across its surface thanks to some law of physics or microscopic holes in the tiles, or something else that noone has had the imagination to think of yet. And the flakes of corn that would have once been consumed by Joshua found their way into a number of places on the floor, where their once pristine condition was disrupted by the countless number of bacteria that lived there.
Joshua stared at the floor for a while, folornly contemplating the joy that he could have had once if it were not for a combination of whatever was responsible for the drawing of masses to each other and his poor attention to the location of his cereal relative to his elbow. But time moved forwards, and entropy dictated that the bowl would, most likely, not reassemble itself in the ensuing minutes no matter what Joshua's feelings on the matter were, and so he began the task of removing the debris of his breakfast from the kitchen tiles.
In the background, an old FM radio blared out the musings of whatever guy the station had put in for the morning. Someone had just won a car. Joshua's cat Tiddles licked it's paws, for reasons it probably knew itself. The world turned a bit more. It liked doing that.
Suddenly, the world exploded and everyone died.