Everything that is, every being or entity, is something. This means that about every entity "what is it?" can be asked. The proper answer will be to name its what-it-is (Greek: τὸ τί ἦν εἶναι) or essence (Latin: essentia) or whatness (English: awkward).
The essence of an entity isn't the same as the entity, because there are (in almost all cases) many entities that share the same what-it-is.
All dogs are dogs. That is, each dog has the ontological structure of being-a-dog, the essence of dog or "dogness."
The word "species" is another word that classical functions as a near synonym for "essence" — because it marks off a natural kind.
Other natural kinds include, e.g. chemical elements or the particles of physics.
As a general rule, essences pertain to natural entities.
Artifacts do not have essences of their own, but their what-being is relative to their function, which in turn is a function of human artifice.
"Artificial" does not entail "arbitrary," however, and all human art is built upon nature, and with regard to nature, and arises from human nature.
The ontology of tools and artifacts is interesting and complicated, but I don't want to get into it at the moment.
I'm inclined to say that at least some human artifacts have almost quasi-essences, a case in point being the sword.
"He who lives by the sword, dies by the sword."
For our purposes, the thing to understand about essences is that they aren't "weird, metaphysical entities."
Everything is something, and to each thing the "something" that it is, is its essence.
Essence is as common as dirt.
Is dirt a natural kind? If so, it has an essence. All dirt would be dirt by having the common essence of dirt.
Or is "dirt" just a word which we can call a number of different kinds of thing? In that case, dirt doesn't have an essence. I
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The Woke deal almost entirely in hyper-realities, that is, pseudo-realities, paralogics, and paraethical systems.
@ConceptualJames I keep underestimating this phenomenon, because as much as I understand intellectually that people do this, the idea of CHOOSING TO LIVE IN A FAKE REALITY is so evidently a bad and wrongheaded idea, I tend to assume people who inhabit such pseudo-realities are MAKING MISTAKES.
@ConceptualJames This turn to pseudo-reality, the deliberate orientation to the back of the cave will and way from the light of being and truth, this is a thing of the will primarily, and a thing of the intellect, which is darken by it, only secondarily.
Who you are isn’t reducible to what you are, but what you are is the foundation of who you are.
Similarly everything which is socially constructed is built on the foundation of the natural. You cannot ‘deconstruct’ nature away anymore than you can construct a building in air or a perpetual motion machine.
Those who reject Platonism, that is, who reject realism about essences, fall automatically into nominalism, the thesis that what things are is merely how we talk about them. This view rejects truth and knowledge, since to grasp “S is P,” there must be something stable to grasp.
A teacher was explaining on TikTok his “trans closet” that he uses with the children he teaches: students come to school dressed by their parents, and then go into the trans closet to change into “who they really are.”
He explains this by likening it to Clark Kent going into the phone booth to change into Superman, “who he really is.”
Setting aside the question of Clark’s true identity, the analogy fails utterly because “who Superman is” is a function of his Kryptonian biology.
Superman is invulnerable, can fly, is vulnerable to Kryptonite BECAUSE HE IS BIOLOGICALLY KRYPTONIAN.
If would be sheer nonsense for Superman to think “identifying as” human would protect him from Kryptonite
The very nature of statistics is to establish correlations between different factors. In statistics, the “null hypothesis” is the hypothesis that two factors have no correlation whatever, e.g. the full moon and SAT scores.
Against the background of the null hypothesis, one can then ascertain whether there is a non-null correlation between X and Y.
I’m not particularly interested in statistics, however. I bring it up because there is a widespread misuse of the term “null hypothesis.”
Anyone using “null hypothesis” in statistics is fine.
But you are more likely to see “null hypothesis” used differently.