Everything

Source: Wikipedia, the free encyclopedia.
The universe is everything that exists theoretically (Hubble Ultra-Deep Field image of distant galaxies pictured)

Everything, every-thing, or every thing, is all that

abstract objects
.

Scope

In ordinary conversation, everything usually refers only to the totality of things relevant to the subject matter.[1] When there is no expressed limitation, everything may refer to the universe, or the world.

The universe is most commonly defined as everything that physically exists: the entirety of

quantum measurement
. By definition, these speculations cannot currently be tested experimentally, yet, if multiple universes do exist, they would still be part of everything.

Especially in a

human beings
.

In theoretical physics

In

quantum physics to describe a theory that would unify or explain through a single model the theories of all fundamental interactions
in nature.

There have been many theories of everything proposed by

theoretical physicists over the last century, but none have been confirmed experimentally. The primary problem in producing a TOE is that the accepted theories of quantum mechanics, general relativity, and special relativity are hard to combine. Theories exploring quantum mechanics and string theory are easier to combine[citation needed
].

Based on theoretical holographic principle arguments from the 1990s, many physicists believe that 11-dimensional M-theory, which is described in many sectors by matrix string theory, and in many other sectors by perturbative string theory, is the complete theory of everything. Other physicists disagree.

In philosophy

In philosophy, a theory of everything or TOE is an ultimate, all-encompassing explanation of

philosophers have discussed the viability of the concept and analyzed its properties and implications.[2][3][4] Among the questions to be addressed by a philosophical theory of everything are: "Why is reality understandable?", "Why are the laws of nature as they are?", and "Why is there anything at all?".[2]

See also

References

  1. ^ a b "everything". Merriam-Webster Online Dictionary. Retrieved 2008-06-17.
  2. ^ a b c Rescher, Nicholas (2006a). "Holistic Explanation and the Idea of a Grand Unified Theory". Collected Papers IX: Studies in Metaphilosophy.
  3. ^ a b Rescher, Nicholas (2006b). "The Price of an Ultimate Theory". Collected Papers IX: Studies in Metaphilosophy.
  4. ^ a b Walker, Mark Alan (March 2002). "Prolegomena to Any Future Philosophy". Journal of Evolution and Technology Vol. 10.