Mereological nihilism Totally Explained

Everything about Mereological Nihilism totally explained

Mereological nihilism (also called compositional nihilism, or what some philosophers just call nihilism) is the position that objects with proper parts don't exist (not only objects in space, but also objects existing in time don't have any temporal parts), and only basic building blocks without parts exist (for example, electrons, quarks), and thus the world we see and experience full of objects with parts is a product of human misperception (if we could see clearly, we'd not see compositive objects).

Explanation

Almost everyone knows what a part and a whole are; they're some of the first concepts that children or infants learn. A ball is made up of two halves, so the ball is a whole that's made up of two parts. Every single object we experience in the world outside of us and around us is a whole that has parts, and we never experience an object that doesn't have parts. For example, a tail is a part of a lion, a cloud is a part of a greater weather system or, in visual terms, the sky, and a nucleobase is a part of a DNA strand. The only things we know of that don't have parts are the smallest items known to exist, such as electrons, which can't be 'seen', so are not experienced—at least not directly. Thus all objects we experience have parts.
A number of philosophers have argued that objects that have parts don't exist. The basis of their argument consists in claiming that our senses give us only foggy information about reality and thus they can't be trusted; and for example, we fail to see the smallest building blocks that make up anything (and that's a pretty important aspect of reality to not have any perception of), and these smallest building blocks are individual and separate items that don't ever unify or come together into being non-individual. Thus they never compose anything. So, according to the concept of mereological nihilism, if the building blocks of reality never compose any whole items, then all of reality doesn't involve any whole items, even though we may think it does.

Discussion

Mereological nihilism entails the denial of what is called classical mereology, which is succinctly defined by Achille Varzi, a modern philosopher:
“Mereology (from the Greek μερος, ‘part’) is the theory of parthood relations: of the relations of part to whole and the relations of part to part within a whole. Its roots can be traced back to the early days of philosophy, beginning with the Presocratic atomists and continuing throughout the writings of Plato (especially the Parmenides and the Thaetetus), Aristotle (especially the Metaphysics, but also the Physics, the Topics, and De partibus animalium), and Boethius (especially In Ciceronis Topica).” (This citation is from the very beginning of his internet entry (External Link

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As can be seen from Varzi’s passage, classical mereology depends on the idea that there are metaphysical relations that connect part(s) to whole. Mereological nihilists maintain that such relations between part and whole don't exist, even though our senses might give us the impression that there are parts and wholes in reality.

Partial vs. Pure Nihilism

There are a few other philosophers who argue for what could be considered a partial nihilism, or what has been called quasi-nihilism, which is the position that only objects of a certain kind have parts. One such position is 'organicism': the view that living beings exist, but there are no other objects with parts, and all other objects that we believe to be composite—chairs, planets, etc.—therefore don't exist. Rather, other than living beings, which are composites (objects that have parts), there are only true atoms, or basic building blocks (which they call simples). The organicists include Trenton Merricks of the University of Virginia [2], and Peter van Inwagen of Notre Dame(External Link

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Even though there are no tables or chairs, thinks van Inwagen, it's still permissible to assert sentences such as 'there are tables'. This is because such a sentence can be paraphrased as 'there are simples arranged tablewise'; it's appropriate to assert it when there are simples arranged a certain way. It is a common mistake to hold that van Inwagen's view is that tables are identical to atoms arranged tablewise. This isn't his view: van Inwagen would reject the claim that tables are identical to atoms arranged tablewise because he rejects the claim that composition is identity, and because he doesn't admit the existence of atoms, which would have proper parts if they did exist--only living organisms and simples, such as electrons. Nonetheless, he maintains that an ordinary speaker who asserts, for instance, "There are four chairs in that room" will speak truly if there are, indeed, simples in the room arranged in the appropriate way (so as to make up, in the ordinary view, four chairs). He claims that the statement and its paraphrase "describe the same fact". (For details, see his book "Material Beings".)
One philosopher who has contended in favor of something close to pure mereological nihilism is Peter Unger, in his papers "There Are No Ordinary Things," and "I Do Not Exist."

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