Anyways, after the Big Bang every field is theorised to have ‘rolled’ down to its ground state or lowest energy level. All except one: The Higgs Field. The Higgs Field is like the ball on the hill. With an energy level of 126 GeV or 126 giga electron volts, the Higgs Field is not in its lowest energy level (it is metastable). A slight push can send it tumbling down to an even lower energy level.
Peter Higgs, the scientist who theorised the existence of the Higgs Boson said that the Higgs Field can exist only at a certain energy level. Any more or less, the energy level, the laws of the Universe would have been completely different.
This is where the danger lies. If this jump to a lower energy level occurs somewhere in outer space a tiny ball will form. This ball will continue expanding at the speed of light in all directions. Inside this bubble, physics as we know it, will cease to exist. This means that the laws of science you may have learned throughout school, won’t hold true anymore.
So much for that maths test you gave, staying awake the whole night in preparation! None of your answers hold true anymore. Thus, as the ball passes you, who knows if your atoms will hold on. This is called vacuum decay. The Higgs field is currently at false vacuum state. Any wrong push, can make it collapse to the true vacuum state. Which is why many conspiracy theorists were worried that the high energy particle collisions in the Large Hadron Collider may generate a vacuum decay. Don’t worry, it won’t.
Jesus: Hey, Dad? God: Yes, Son? Jesus: Western civilization followed me home. Can I keep it? God: Certainly not! And put it down this minute--you don't know where it's been! Tom Robbins in Another Roadside Attraction