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The present is the time that is perceived directly, not as a recollection or a speculation. The idea of present cannot be separated from a position in space. That is, the present is a point in space-time.When comparing time in places separated by great distances, the notion of present becomes unclear. For example, we see stars as and where they were many years ago when the light just now reaching our eyes was emitted, because even though light travels at the incredible speed of 3.0x108 m/s it takes so much time to travel the great distances from the stars. The nearest star, besides our sun, is about four light years away meaning that it takes four years for the light to reach our eyes from that star.
1 Present as Illusion
According to scientific knowledge, the notion of 'now' does not exist. Furthermore, there is no provable reason why time should move in any one particular direction. This has lead to the conclusion that the idea of a present is illusory and does not reflect the true nature of reality. The notion of "now" may be better understood as an unrealistic concept that has evolved in humans and animals to give us an understand of reality useful only to the extent necessary for survival.
2 See Also
PastThe past is the portion of the timeline that that has already occurred; it is the opposite of the future. It is also contrasted with the present. The past is the object of such sciences as history, archaeology, historical linguistics, geology ( historical
FutureFor the meaning in finance, see futures contract. In a linear conception of time, the future is the portion of the timeline that is still to occur, i. the place in space-time where lie all events that still have not occurred. In this sense the future is o
HereHere is this place rather than another that place which might be called there''. It is the place where a thinking subject is, or places himself. Just plain here Here is the place you are now, wherever that happens to be. In English, here can function as a
Arrow of TimeThe arrow of time is a concept used because almost all of the processes of physics at the microscopic level are time symmetric, meaning that the equations used to describe them are the same if the direction of time were reversed, yet when we describe thin
3 Bibliography
Greene, Brian, (2004). The Fabric of the Cosmos: Space, Time, and the Texture of Reality. Knopf. BooksEnthsiast.com
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