Eternity
Encyclopedia
While in the popular mind, eternity (or foreverness) often simply means existence for a limitless amount of time
Time
Time is a part of the measuring system used to sequence events, to compare the durations of events and the intervals between them, and to quantify rates of change such as the motions of objects....

, many have used it to refer to a timeless existence altogether outside time. By contrast, infinite temporal existence is then called sempiternity. Something eternal exists outside time; by contrast, something sempiternal exists throughout an infinite time. Sempiternity is also known as everlastingness.

There are a number of arguments for eternity
Arguments for eternity
Arguments for eternity composed a particularly important area of philosophical debate among Greek, Jewish, Islamic, and Christian philosophers during the ancient and medieval periods. The foremost philosopher arguing for eternity was Aristotle...

, by which proponents of the concept, principally Aristotle
Aristotle
Aristotle was a Greek philosopher and polymath, a student of Plato and teacher of Alexander the Great. His writings cover many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, linguistics, politics, government, ethics, biology, and zoology...

, purported to prove that matter
Matter
Matter is a general term for the substance of which all physical objects consist. Typically, matter includes atoms and other particles which have mass. A common way of defining matter is as anything that has mass and occupies volume...

, motion
Newton's laws of motion
Newton's laws of motion are three physical laws that form the basis for classical mechanics. They describe the relationship between the forces acting on a body and its motion due to those forces...

, and time must have existed eternally.

The idea of eternity

The metaphysics
Metaphysics
Metaphysics is a branch of philosophy concerned with explaining the fundamental nature of being and the world, although the term is not easily defined. Traditionally, metaphysics attempts to answer two basic questions in the broadest possible terms:...

 of eternity might be summarized by the question: can anything be said to exist "outside of" or independent of Time/Space
Philosophy of space and time
Philosophy of space and time is the branch of philosophy concerned with the issues surrounding the ontology, epistemology, and character of space and time. While such ideas have been central to philosophy from its inception, the philosophy of space and time was both an inspiration for and a...

, and if so how and why?
Some consequential metaphysical questions of some importance are then: can "information
Information
Information in its most restricted technical sense is a message or collection of messages that consists of an ordered sequence of symbols, or it is the meaning that can be interpreted from such a message or collection of messages. Information can be recorded or transmitted. It can be recorded as...

" be said to exist without, or independent of, the human mind
Philosophy of mind
Philosophy of mind is a branch of philosophy that studies the nature of the mind, mental events, mental functions, mental properties, consciousness and their relationship to the physical body, particularly the brain. The mind-body problem, i.e...

, and, if so, what would be the content and "purpose" of such information?

God and eternity

Theists say that God
God
God is the English name given to a singular being in theistic and deistic religions who is either the sole deity in monotheism, or a single deity in polytheism....

 is eternally existent. How this is understood depends on which definition of eternity is used. On one hand, God may exist in eternity, a timeless existence where categories of past, present, and future just do not apply. On the other hand, God will exist for or through eternity, or at all times, having already existed for an infinite amount of time and continuing to exist for an infinite amount of time. One other definition states that God exists outside the human concept of time, but also inside of time. The reasoning for this definition is that if God did not exist both outside time and inside time, God would not be able to interact with humans.

Whichever definition of eternity is understood, it is an understatement to say that humans cannot fully understand eternity, since it is either an infinite
Infinity
Infinity is a concept in many fields, most predominantly mathematics and physics, that refers to a quantity without bound or end. People have developed various ideas throughout history about the nature of infinity...

 amount of time as we know it or something other than the time and space we know. For the infinite definition, there are parallels that give some notion of an infinity—of at least a potential infinity, or a series that begins and has not ended. A series of moments that has begun and not ended is, however, not potentially eternal by that definition. A series of moments that has begun and not ended cannot be eternal, because even if it were to continue for the rest of (infinite) time, there would still be time prior to the initial moment in the series. The series of moments could not ever exist for all eternity because no matter what happened during the series of moments, nothing would ever cause the series of moments to have existed since the beginning of "eternity", and thus could never achieve the status of eternal or even potentially eternal.

Augustine of Hippo
Augustine of Hippo
Augustine of Hippo , also known as Augustine, St. Augustine, St. Austin, St. Augoustinos, Blessed Augustine, or St. Augustine the Blessed, was Bishop of Hippo Regius . He was a Latin-speaking philosopher and theologian who lived in the Roman Africa Province...

 wrote that time exists only within the created universe, so that God exists outside time; for God
God
God is the English name given to a singular being in theistic and deistic religions who is either the sole deity in monotheism, or a single deity in polytheism....

 there is no past
Past
Most generally, the past is a term used to indicate the totality of events which occurred before a given point in time. The past is contrasted with and defined by the present and the future. The concept of the past is derived from the linear fashion in which human observers experience time, and is...

 or future
Future
The future is the indefinite time period after the present. Its arrival is considered inevitable due to the existence of time and the laws of physics. Due to the nature of the reality and the unavoidability of the future, everything that currently exists and will exist is temporary and will come...

, but only an eternal present; this, of course, would require God to exist only outside the present universe. One need not believe in God in order to hold this concept of eternity: for example, an atheist
Atheism
Atheism is, in a broad sense, the rejection of belief in the existence of deities. In a narrower sense, atheism is specifically the position that there are no deities...

 mathematician
Mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...

 can maintain the philosophical
Philosophy
Philosophy is the study of general and fundamental problems, such as those connected with existence, knowledge, values, reason, mind, and language. Philosophy is distinguished from other ways of addressing such problems by its critical, generally systematic approach and its reliance on rational...

 tenet that numbers and the relationships among them exist outside time, and so are in that sense eternal.

Related to the notion of eternal existence is the concept of God as Creator, as a being completely independent of "everything else" that exists because God created everything else (as against panentheism
Panentheism
Panentheism is a belief system which posits that God exists, interpenetrates every part of nature and timelessly extends beyond it...

). If this premise is true, then it follows that God is independent of both space and time, since these are properties of the universe
Universe
The Universe is commonly defined as the totality of everything that exists, including all matter and energy, the planets, stars, galaxies, and the contents of intergalactic space. Definitions and usage vary and similar terms include the cosmos, the world and nature...

. So according to this notion, God exists before time began, exists during all moments in time, and will continue to exist if somehow the universe and time itself were to cease to exist, which may present a problem as to how He could then influence events within the universe.

Related to 'eternal life', the biblical revelation
Revelation
In religion and theology, revelation is the revealing or disclosing, through active or passive communication with a supernatural or a divine entity...

 first indicated that Man as a special created being is able to grasp the abstract concept in contrast with the lower animal world which did not have the ability to understand the concept of "eternity". See book of Ecclesiastes
Ecclesiastes
The Book of Ecclesiastes, called , is a book of the Hebrew Bible. The English name derives from the Greek translation of the Hebrew title.The main speaker in the book, identified by the name or title Qoheleth , introduces himself as "son of David, king in Jerusalem." The work consists of personal...

 3:11 "He has made everything beautiful in its time. He has also set eternity in the hearts of men .." (from Bible
Bible
The Bible refers to any one of the collections of the primary religious texts of Judaism and Christianity. There is no common version of the Bible, as the individual books , their contents and their order vary among denominations...

 translation in the N.I.V.). Contrast this with the timeless existence definition, which would imply animals are blessed with eternal life from birth (because of their inability to grasp the concept of eternity or even time), which is something mankind gave up when he was cast out of the "Garden of Eden." It is commonly believed among theists that although mankind can grasp the abstract concept of "eternity", one may only obtain "eternal life" once returned to God.

The idea of God being outside of time is a result of much thought amongst theists on the “Who created God” or “What was there before God?” questions. The main scriptural clue is found in 2Pe:3:8: “But, beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day.”

Symbolism

Eternity is often symbolized by the image of a snake swallowing its own tail, known as Ouroboros
Ouroboros
The Ouroboros is an ancient symbol depicting a serpent or dragon eating its own tail. The name originates from within Greek language; οὐρά meaning "tail" and βόρος meaning "eating", thus "he who eats the tail"....

 (or Uroboros), though the symbol can also carry a number of other connotations.

The circle is also commonly used as a symbol for eternity. The related concept, infinity
Infinity
Infinity is a concept in many fields, most predominantly mathematics and physics, that refers to a quantity without bound or end. People have developed various ideas throughout history about the nature of infinity...

, is symbolized by , which may be based on the Ouroboros.

See also

  • Aeon
    Aeon
    The word aeon, also spelled eon or æon , originally means "life", and/or "being", though it then tended to mean "age", "forever" or "for eternity". It is a Latin transliteration from the koine Greek word , from the archaic . In Homer it typically refers to life or lifespan...

  • Arguments for eternity
    Arguments for eternity
    Arguments for eternity composed a particularly important area of philosophical debate among Greek, Jewish, Islamic, and Christian philosophers during the ancient and medieval periods. The foremost philosopher arguing for eternity was Aristotle...

  • Eternalism
  • Eternal return
    Eternal return
    Eternal return is a concept which posits that the universe has been recurring, and will continue to recur, in a self-similar form an infinite number of times across infinite time or space. The concept initially inherent in Indian philosophy was later found in ancient Egypt, and was subsequently...

  • Perennial philosophy
    Perennial philosophy
    Perennial philosophy is the notion of the universal recurrence of philosophical insight independent of epoch or culture, including universal truths on the nature of reality, humanity or consciousness .-History:The idea of a perennial philosophy has great...

  • Presentism
    Presentism (philosophy of time)
    Saint Augustine proposed that the present is a knife edge between the past and the future and could not contain any extended period of time. This seems evident because, if the present is extended, it must have separate parts - but these must be simultaneous if they are truly part of the present...

  • Temporal finitism
    Temporal finitism
    Temporal finitism is the idea that time is finite. The context of the idea is the pre-modern era, before mathematicians had understood the concept of infinity and before physical cosmology....

  • Time
    Time
    Time is a part of the measuring system used to sequence events, to compare the durations of events and the intervals between them, and to quantify rates of change such as the motions of objects....

    • Time (philosophy)
      Philosophy of space and time
      Philosophy of space and time is the branch of philosophy concerned with the issues surrounding the ontology, epistemology, and character of space and time. While such ideas have been central to philosophy from its inception, the philosophy of space and time was both an inspiration for and a...

    • Time (psychology)
    • Time (science)
      Time in physics
      Time in physics is defined by its measurement: time is what a clock reads. It is a scalar quantity and, like length, mass, and charge, is usually described as a fundamental quantity. Time can be combined mathematically with other physical quantities to derive other concepts such as motion, kinetic...

      • Timeline of the Big Bang
        Timeline of the Big Bang
        This timeline of the Big Bang describes the history of the universe according to the prevailing scientific theory of how the universe came into being, using the cosmological time parameter of comoving coordinates...

        • Planck epoch
          Planck epoch
          In physical cosmology, the Planck epoch , named after Max Planck, is the earliest period of time in the history of the universe, from zero to approximately 10−43 seconds , during which, it is believed, quantum effects of gravity were significant...

  • Yin and yang
    Yin and yang
    In Asian philosophy, the concept of yin yang , which is often referred to in the West as "yin and yang", is used to describe how polar opposites or seemingly contrary forces are interconnected and interdependent in the natural world, and how they give rise to each other in turn. Opposites thus only...


External links

  • http://plato.stanford.edu/entries/eternity/ Entry in the Stanford Encyclopedia of Philosophy
    Stanford Encyclopedia of Philosophy
    The Stanford Encyclopedia of Philosophy is a freely-accessible online encyclopedia of philosophy maintained by Stanford University. Each entry is written and maintained by an expert in the field, including professors from over 65 academic institutions worldwide...

     on Eternity.
  • http://www.iep.utm.edu/g/god-time.htm Entry in the Internet Encyclopedia of Philosophy
    Internet Encyclopedia of Philosophy
    The Internet Encyclopedia of Philosophy is a free online encyclopedia on philosophical topics and philosophers founded by James Fieser in 1995. The current general editors are James Fieser and Bradley Dowden...

     on the relationship between God
    God
    God is the English name given to a singular being in theistic and deistic religions who is either the sole deity in monotheism, or a single deity in polytheism....

     and Time
    Time
    Time is a part of the measuring system used to sequence events, to compare the durations of events and the intervals between them, and to quantify rates of change such as the motions of objects....

    .



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