Real world

In terminology, real world, as compared to the imaginary, hypothetical, fictional, mythological and or metaphysical world, i.e. "not real" (or non-real), refers to the observable universe as quantifiably defined by measurable reality, realism, real science or actuality; that which exists.

The following are noted quotes:

“All physical science starts from certain postulates. One of them is the objective existence of a real world.”
Thomas Huxley (1887), cited by Mellor (1922), in: chapter twelve “Thermodynamics and Thermochemistry” [1]

“The law of conservation applies to some things and not to others, and the things which it does not apply are unreal.”
James Johnstone (1914), The Philosophy of Biology

“What is real? How do you define real? If you’re talking about what you can feel; what you can taste; what you can smell and see; then real is simply electrical signals being interpreted by your brain.”
— Wachowski brothers (1999), character: Morpheus of film The Matrix [2]

“Sometimes philosophical or scientific insights come from an event that’s not very profound, like a party. I remember at Caltech: sure there were a lot of smart people around, some of my roommates and even some professors. I remember one fellow, a pompous fellow, he was saying ‘physics’ is the most basic of all the sciences. After all it’s how the universe works, right? Well, one of my housemates was a mathematician, and he wasn’t about to let that go. He said ‘all your physical laws, your quote on quote laws, are just mathematical models, applied to the real world.’ As if the real world didn’t matter too much? (It didn’t to him). And he seemed quite smug and satisfied that he had demolished this earlier statement until a philosopher, a guy who had become a philosophy major, came up and he said, ‘well look, you know Bruce, that all of your mathematical derivations come from the axioms, the fundamental premises, the basis upon which you base your formulas. And Bertrand Russell proved that those can be almost arbitrary. It’s all a matter of philosophical choice, where you start from. Philosophy is the most basic and general of things.’ And he seemed to have everybody convinced, until a psychologist said ‘but wait a minute, where does all your philosophy come from? It’s all rooted in psychology. It’s been proved long ago. Plato just manufactured all that stuff, based upon his own impulses. You could psychoanalyze him and derive it all. It’s all mental.’ At which point, a biologist came up and said ‘and where does all this mental stuff come from? It’s all in the brain, a biological organ, that evolved over time, to certain Darwinian needs. Obviously, it’s all rooted in biology.’ To which the chemist said ‘and what is biology? It’s just colloidal chemistry. I mean look down at the level of the cell, the level of the DNA, it’s all chemistry. It’s more basic than any of your convoluted organs and all that.’ At which point, the physicist said ‘are you all done now?”
— David Brin (2010), reflection (Ѻ) on circa 1971 Caltech party conversation

See also
Chemical Thermodynamics in the Real World

1. (a) Mellor, Joseph W. (1922). A Comprehensive Treatise on Inorganic and Theoretical Chemistry, Volume One (real world, pg. 688). Longmans.
(b) Mellor, Joseph W. (1922). A Comprehensive Treatise on Inorganic and Theoretical Chemistry, Volume Two. Longmans.
2. Thims, Libb. (2007). Human Chemistry (Volume One) (pg. xix). Morrisville, NC: LuLu.

External links
Real World (TV series) – Wikipedia.

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