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Keller and Nelson have argued that even if past and future objects do not exist, there can still be definite truths about past and future events, and thus it is possible that a future truth about a time traveler deciding to travel back to the present date could explain the time traveler's actual appearance in the present; [88] these views are ...
A bootstrap paradox, also known as an information loop, an information paradox, [6] an ontological paradox, [7] or a "predestination paradox" is a paradox of time travel that occurs when any event, such as an action, information, an object, or a person, ultimately causes itself, as a consequence of either retrocausality or time travel.
Time travel in modern fiction is sometimes achieved by space and time warps, stemming from the scientific theory of general relativity. [9] Stories from antiquity often featured time travel into the future through a time slip brought on by traveling or sleeping, in other cases, time travel into the past through supernatural means, for example brought on by angels or spirits.
Retrocausality, or backwards causation, is a concept of cause and effect in which an effect precedes its cause in time and so a later event affects an earlier one. [1] [2] In quantum physics, the distinction between cause and effect is not made at the most fundamental level and so time-symmetric systems can be viewed as causal or retrocausal.
Temporal finitism is the doctrine that time is finite in the past. [clarification needed] The philosophy of Aristotle, expressed in such works as his Physics, held that although space was finite, with only void existing beyond the outermost sphere of the heavens, time was infinite.
Look past the recent clinical setback. ... it could still go on to become successful in the weight loss and obesity markets. ... if you invested $1,000 when we doubled down in 2009, you’d have ...
The United States is about to go to war with a still-extant Soviet Union. The film correctly predicted that the 2008 Summer Olympics would be held in Beijing. [10] 2010: Odyssey Two: Novel 1982 2010 Sequel to the 2001: A Space Odyssey book; the Soviet Union still exists in 2010. 2012: Film 2009 2009–2012 See also: 2012 phenomenon. [11] 2012 ...
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