In this letter, I propose a more basic and comprehensive viewpoint in Physics- the generalized energy density equation, which has been named by mainstream media as the "holy grail of modern Physics". The existence of particles, fields and quantum effects in the universe may be derived from this underlying principle.

It can also be used for practical applications, for example: extracting energy from the quantum vacuum, Casimir batteries and engines, single heat baths and lastly in space travel and gravitational shielding. If a theory that is used to do calculations for a rocket launch can be derived from one underlying principle- the generalized energy density, imagine what that principle could do for the entire universe when put to good use by NASA, SpaceX and Blue Origin.

This physics letter presents a definitive, accessible proof to how fundamental forces can be derived from the generalized energy density, solving most of the major shortcomings of general relativity and the standard model. This single theory also provides a consistent explanation of the force of gravity and inertia, something that still eludes those who religiously follow the standard model.

. .