Philosophy of motion

Last updated

Philosophy of motion is a branch of philosophy concerned with exploring questions on the existence and nature of motion. The central questions of this study concern the epistemology and ontology of motion, whether motion exists as we perceive it, what is it, and, if it exists, how does it occur. The philosophy of motion is important in the study of theories of change in natural systems and is closely connected to studies of space and time in philosophy.

Contents

The philosophy of motion was of central concern to Ancient Greek and Roman philosophers, particularly the pre-Socratic philosophers such as Parmenides, Zeno of Elea, Heraclitus and Democritus. As such, it was influential in the development of the philosophy of science in general.

Early history

Greek physiology

The concept of motion is closely related to the idea of change, and it is arguments about what made change possible that led the early Greek philosophers to pioneer naturalistic explanations for phenomena.

Heraclitus (born circa 535 BC) had famously declared that "all things are in motion like a stream". [1]

Motion only a perception

Parmenides (born circa 475 BC) and his followers held that motion is only perceived but cannot actually exist. He professed that from our human point of view there are two aspects to the study of the universe of which we must be aware, on the one hand how we see it, and on the other how it must really be. Motion is a fact from our point of view, but Parmenides argues that as far as things must really be, it is logically impossible that motion could exist as we perceive it.

Zeno of Elea, a pupil of Parmenides, formulated the Arguments against motion, more commonly referred to as the paradoxes, in order to support his master's theories of the One and of the consequent impossibility of motion at the fundamental level. The rigorous denial of even the possibility of motion forced a more thorough response from philosophers engaged on the same theoretical project.

This school of thought leaned on the notion of infinite continuous matter, space (and time).

Atomism and determinism

In response to Parmenides definition of motion, Democritus (born circa 460) expounded the atomic theory, in which indivisible bits of matter are in constant motion through the void. In the absence of something to perturb them they fall evenly through space. According to this school of thought matter and or space (and time) are discrete and finite. [2] Evidence for this theory was found by John Dalton in the early 1800s, explaining the finding that chemical decomposition of compounds gives whole numbered ratios of weight, leading to Dalton's atomic theory [3]

Motion conceived in this way led to the approach of determinism and therefore to questioning how free will could exist. In response, Epicurus appears to have included the concept of the clinamen, or atomic swerve. This tiny random motion serves to bring atoms into contact and begin the cascade that leads to the organization of matter as it is perceived by us, introducing an element of uncertainty allowing for the existence of individual choice, an essential concept in Epicure's philosophy.

Plato and Aristotle

According to Plato (circa 425 BC), motion is a phenomenon that can never be completely comprehended or described. It originates in infinite and continuous "spiritual" self-motion which is synonymous to life and to the soul. This perpetual motion causes "communicated" motion, which is the perceived motion of bodies. [4]

Aristotle (384 BC) claimed that all motion is caused, and can be sensed, but originally was potentially present in the now moving body. Once there is motion, that motion will continue infinitely unless it is stopped. [4]

Aristotle's doctrine was generally adopted by medieval science and lead to Isaac Newton's formulation of the Newton's laws of motion in 1666.

Buddhist

The philosophy of motion is treated by the Buddhist philosopher Nagarjuna in his treatise the Mūlamadhyamakakārikā or Fundamental verses of the Middle Way, in the 2nd and 3rd century CE.

Further east, in China, the Sanlun school of Mahayana Buddhism developed a sophisticated philosophy of motion under the philosopher Sengzhao. His treatise called The Immutability of Things, deals with motion explicitly.

Aztec

Aztec metaphysics gave priority to motion over substance in its cosmological ontology. In other words, process was seen to be fundamental and objects or substances as ephemeral. Change therefore was naturally conceived of as motion, and this motion was divided into three forms, out of which all change occurs. These were named olin (bouncing, oscillating) malinalli (spinning, twisting, spiralling) and, the most important, nepantla (weaving, intersecting, joining, balancing). [5]

Medieval

Modern

Achieving a coherent understanding of motion has been, and continues to be, of importance in understanding the nature of space and time in modern science.[ according to whom? ] The main philosophical debate has been between absolute and relational conceptions of motion. [6]

Biology

Motion in complex systems such as protein folding.

Evolution

Morphogenesis of animal bodies and change on large and small scales. Niche construction.

Quantum physics

Questions of the nature of motion continue to arise in modern physics, with many of the issues of concern to early thinkers arising in different form. Heisenberg's uncertainty principle and the clinamen of the Epicureans.

Philosophy of movement

The philosophy of movement is also a subfield of contemporary philosophy related to process philosophy and defined by the study of social, aesthetic, scientific, and ontological domains from the perspective of the primacy of movement. [7] This includes philosophers such as Erin Manning and Thomas Nail.

See also

https://plato.stanford.edu/entries/spacetime-theories-classical/

Related Research Articles

<span class="mw-page-title-main">Democritus</span> Greek philosopher (c. 460–c. 370 BC)

Democritus was an Ancient Greek pre-Socratic philosopher from Abdera, primarily remembered today for his formulation of an atomic theory of the universe. Democritus wrote extensively on a wide variety of topics.

<span class="mw-page-title-main">Heraclitus</span> Greek philosopher (late 6th/early 5th-century BC)

Heraclitus was an ancient Greek pre-Socratic philosopher from the city of Ephesus, which was then part of the Persian Empire. He exerts a wide influence on ancient and modern Western philosophy, including through the works of Plato, Aristotle, Hegel, and Heidegger.

<span class="mw-page-title-main">Leucippus</span> 5th-century BCE Greek philosopher

Leucippus was a pre-Socratic Greek philosopher. He is traditionally credited as the founder of atomism, which he developed with his student Democritus. Leucippus divided the world into two entities: atoms, indivisible particles that make up all things, and the void, the nothingness that exists between the atoms. He developed his philosophy as a response to the Eleatics, who believed that all things are one and the void does not exist. Leucippus's ideas were influential in ancient and Renaissance philosophy. Leucippus was the first Western philosopher to develop the concept of atoms, but his ideas only bear a superficial resemblance to modern atomic theory.

<span class="mw-page-title-main">Parmenides</span> 5th-century BC Greek philosopher

Parmenides of Elea was a pre-Socratic Greek philosopher from Elea in Magna Graecia.

Process philosophy, also ontology of becoming, or processism, is an approach in philosophy that identifies processes, changes, or shifting relationships as the only real experience of everyday living. In opposition to the classical view of change as illusory or accidental, process philosophy posits transient occasions of change or becoming as the only fundamental things of the ordinary everyday real world.

Pre-Socratic philosophy, also known as Early Greek Philosophy, is ancient Greek philosophy before Socrates. Pre-Socratic philosophers were mostly interested in cosmology, the beginning and the substance of the universe, but the inquiries of these early philosophers spanned the workings of the natural world as well as human society, ethics, and religion. They sought explanations based on natural law rather than the actions of gods. Their work and writing has been almost entirely lost. Knowledge of their views comes from testimonia, i.e. later authors' discussions of the work of pre-Socratics. Philosophy found fertile ground in the ancient Greek world because of the close ties with neighboring civilizations and the rise of autonomous civil entities, poleis.

Zeno's paradoxes are a series of philosophical arguments presented by the ancient Greek philosopher Zeno of Elea, primarily known through the works of Plato, Aristotle, and later commentators like Simplicius of Cilicia. Zeno devised these paradoxes to support his teacher Parmenides's philosophy of monism, which posits that despite our sensory experiences, reality is singular and unchanging. The paradoxes famously challenge the notions of plurality, motion, space, and time by suggesting they lead to logical contradictions.

Nothing, no-thing, or no thing, is the complete absence of anything as the opposite of something and an antithesis of everything. The concept of nothing has been a matter of philosophical debate since at least the 5th century BC. Early Greek philosophers argued that it was impossible for nothing to exist. The atomists allowed nothing but only in the spaces between the invisibly small atoms. For them, all space was filled with atoms. Aristotle took the view that there exists matter and there exists space, a receptacle into which matter objects can be placed. This became the paradigm for classical scientists of the modern age like Newton. Nevertheless, some philosophers, like Descartes, continued to argue against the existence of empty space until the scientific discovery of a physical vacuum.

<span class="mw-page-title-main">Zeno of Elea</span> Greek philosopher (c. 495 – c. 430 BC)

Zeno of Elea was a pre-Socratic Greek philosopher. He was a student of Parmenides and one of the Eleatics. Born in Elea, Zeno defended his instructor's belief in monism, the idea that only one single entity exists that makes up all of reality. He rejected the existence of space, time, and motion. To disprove these concepts, he developed a series of paradoxes to demonstrate why they are impossible. Though his original writings are lost, subsequent descriptions by Plato, Aristotle, Diogenes Laertius, and Simplicius of Cilicia have allowed study of his ideas.

Ancient Greek philosophy arose in the 6th century BC. Philosophy was used to make sense of the world using reason. It dealt with a wide variety of subjects, including astronomy, epistemology, mathematics, political philosophy, ethics, metaphysics, ontology, logic, biology, rhetoric and aesthetics. Greek philosophy continued throughout the Hellenistic period and later evolved into Roman philosophy.

<span class="mw-page-title-main">Xenophanes</span> Greek Pre-Socratic philosopher (c.570–c.478 BC)

Xenophanes of Colophon was a Greek philosopher, theologian, poet, and critic of Homer from Ionia who travelled throughout the Greek-speaking world in early Classical Antiquity.

Pluralism is a term used in philosophy, referring to a worldview of multiplicity, often used in opposition to monism or dualism. The term has different meanings in metaphysics, ontology, epistemology and logic. In metaphysics, it is the view that there are in fact many different substances in nature that constitute reality. In ontology, pluralism refers to different ways, kinds, or modes of being. For example, a topic in ontological pluralism is the comparison of the modes of existence of things like 'humans' and 'cars' with things like 'numbers' and some other concepts as they are used in science.

The Eleatics were a group of pre-Socratic philosophers and school of thought in the 5th century BC centered around the ancient Greek colony of Elea, located around 80 miles south-east of Naples in southern Italy, then known as Magna Graecia.

<i>Philosophy in the Tragic Age of the Greeks</i>

Philosophy in the Tragic Age of the Greeks is an incomplete book by Friedrich Nietzsche. He had a clean copy made from his notes with the intention of publication. The notes were written around 1873. In it he discussed five Greek philosophers from the sixth and fifth centuries BC. They are Thales, Anaximander, Heraclitus, Parmenides, and Anaxagoras. He had, at one time, intended to include Democritus, Empedocles, and Socrates. The book ends abruptly after the discussion of Anaxagoras's cosmogony.

Atomism is a natural philosophy proposing that the physical universe is composed of fundamental indivisible components known as atoms.

Metaphysics is the branch of philosophy that investigates principles of reality transcending those of any particular science. Cosmology and ontology are traditional branches of metaphysics. It is concerned with explaining the fundamental nature of being and the world. Someone who studies metaphysics can be called either a "metaphysician" or a "metaphysicist".

This page is a list of topics in ancient philosophy.

The following outline is provided as an overview of and topical guide to metaphysics:

The history of ontology studies the development of theories of the nature and categories of being from the ancient period to the present.

<span class="mw-page-title-main">Italian school (philosophy)</span>

The Italian school of pre-Socratic philosophy refers to Ancient Greek philosophers in Italy or Magna Graecia in the 6th and 5th century BC. Contemporary scholarship disputes the Italian school as a historical school rather than simply a geographical one.

References

  1. Burnet, John (1930). Early Greek Philosophy. 4, 5 & 6 Soho Square, London, W.1: A. & C. Black, Ltd. pp. 145–146.
  2. Russell, Bertrand (1972). A History of Western Philosophy, Simon & Schuster, page 69
  3. Patterson, G. (2007). "Jean Perrin and the triumph of the atomic doctrine". Endeavour . 31 (2): 50–53. doi:10.1016/j.endeavour.2007.05.003. PMID   17602746.
  4. 1 2 The systems of Plato and Aristotle Compared as to their Contributions to Physics, Jules Vulemin, part of The University of Western Ontario Series in Philosophy of Science book series (WONS, volume 49)
  5. Sanchez, Robert Eli (12 October 2014). "Aztec Philosophy: Understanding a World in Motion".
  6. "Absolute and Relational Space and Motion: Post-Newtonian Theories". The Stanford Encyclopedia of Philosophy. Metaphysics Research Lab, Stanford University. 2021.
  7. Nail, Thomas (2018-06-01). "The Ontology of Motion". Qui Parle. 27 (1): 47–76. doi:10.1215/10418385-4382983. ISSN   1041-8385. S2CID   150207584.