my skull hurts

Steamship Normandie is love, Steamship Normandie is life

In quantum field theory, a false vacuum is a hypothetical vacuum state that is locally stable but does not occupy the most stable possible ground state. In this condition it is called metastable. It may last for a very long time in this state, but could eventually decay to the more stable one, an event known as false vacuum decay. A false vacuum exists at a local minimum of energy and is therefore not completely stable, in contrast to a true vacuum, which exists at a global minimum and is stable.

If our universe is in a false vacuum state rather than a true vacuum state, then the decay from the less stable false vacuum to the more stable true vacuum (called false vacuum decay) could have dramatic consequences. The effects could range from complete cessation of existing fundamental forces, elementary particles and structures comprising them, to subtle change in some cosmological parameters, mostly depending on the potential difference between true and false vacuum.

Delta P, or differential pressure, refers to the situation where the pressure between two bodies of water are dramatically different. The cement plug depth below the well-head can influence the differential pressure created during a negative pressure test and can also be caused by a phenomenon referred to as annular compression. 2 out of 3 commercial diving fatalities involve Delta P, it is invisible to a diver and it strikes suddenly without warning. Abnormal pressure could accumulate inside the mariner riser as it comes up, expanding rapidly and blowing out. An emergency device with two sharp cutting blades to seal an out of control well, likely won't activate. The pipe will buckle, preventing the blind-shear ram from functioning properly instead of cutting and sealing the well. :3

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