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that fully explains and links together all known physical phenomena. Initially, the term was used with an ironic connotation to refer to various overgeneralized theories. For example, a great-grandfather of
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over the last century, but none have been confirmed experimentally. The primary problem in producing a TOE is that the accepted theories of
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Rescher, Nicholas (2006a). "Holistic
Explanation and the Idea of a Grand Unified Theory". Collected Papers IX: Studies in Metaphilosophy.
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have discussed the viability of the concept and analyzed its properties and implications. Among the questions to be addressed by a
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that govern them. However, the term "universe" may be used in slightly different contextual senses, denoting such concepts as the
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stories of the 1960s—was known to work on the "General Theory of
Everything". Over time, the term stuck in popularizations of
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usually refers only to the totality of things relevant to the subject matter. When there is no expressed limitation,
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Rescher, Nicholas (2006b). "The Price of an
Ultimate Theory". Collected Papers IX: Studies in Metaphilosophy.
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of everything are: "Why is reality understandable?", "Why are the laws of nature as they are?", and "
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are hard to combine. Theories exploring quantum mechanics and string theory are easier to combine.
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to describe a theory that would unify or explain through a single model the theories of all
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arguments from the 1990s, many physicists believe that 11-dimensional
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494:"Prolegomena to Any Future Philosophy"
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446:. Merriam-Webster Online Dictionary
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348:Theory of everything (philosophy)
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336:perturbative string theory
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128:In ordinary conversation,
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298:fundamental interactions
275:(TOE) is a hypothetical
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36:Hubble Ultra-Deep Field
305:theoretical physicists
257:In theoretical physics
203:many-worlds hypothesis
195:bubble universe theory
116:and in some cases all
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324:holographic principle
322:Based on theoretical
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378:philosophical theory
370:theory of everything
354:theory of everything
332:matrix string theory
273:theory of everything
263:Theory of everything
19:For other uses, see
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269:theoretical physics
238:envisioned from an
207:quantum measurement
317:special relativity
313:general relativity
230:World (philosophy)
199:physical constants
104:in general. Every
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420:Trivialism
282:Ijon Tichy
191:multiverse
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134:everything
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69:complement
59:antithesis
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247:worldview
216:context,
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399:Infinity
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328:M-theory
226:universe
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186:nature
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174:cosmos
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