Why Does Time Pass?

According to the moving spotlight theory of time, the property of being present moves from earlier times to later times, like a spotlight shone on spacetime by God. In more detail, the theory has three components. First, it is a version of eternalism: all times, past present and future, exist. (H...

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Main Author: Skow, Bradford
Other Authors: Massachusetts Institute of Technology. Department of Linguistics and Philosophy
Format: Article
Language:en_US
Published: Wiley 2011
Online Access:http://hdl.handle.net/1721.1/61727
https://orcid.org/0000-0002-7892-4540
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author Skow, Bradford
author2 Massachusetts Institute of Technology. Department of Linguistics and Philosophy
author_facet Massachusetts Institute of Technology. Department of Linguistics and Philosophy
Skow, Bradford
author_sort Skow, Bradford
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description According to the moving spotlight theory of time, the property of being present moves from earlier times to later times, like a spotlight shone on spacetime by God. In more detail, the theory has three components. First, it is a version of eternalism: all times, past present and future, exist. (Here I use “exist” in its tenseless sense.) Second, it is a version of the A-theory of time: there are non-relative facts about which times are past, which time is present, and which times are future. That is, it is not just that the year 1066 is past relative to 2007. The year 1066 is also past full-stop, not relative to any other time. (The A-theory is opposed to the B-theory of time, which says that facts about which times are past obtain only relative to other times.) And third, on this view the passage of time is a real phenomenon. Which moment is present keeps changing. As I will sometimes put it, the NOW moves from the past toward the future. And this does not mean that relative to di erent times, di erent times are present. Even the B-theory can say that 1999 is present relative to 1999 but is not present relative to 2007. No, according to the moving spotlight theory, the claim that which moment is present keeps changing is supposed to be true, even from a perspective outside time. My main goal in this paper is to present a new version of the moving spotlight theory (though in some respects the theory I present also resembles the growing block universe theory of time). This version makes a connection between the passage of time (the motion of the NOW) and change. In fact, it uses facts about change to explain facts about the passage of time. The bulk of the paper is devoted to describing, in detail, how the theory works. I also believe that my new version has advantages over the standard version. It explains things that the standard version cannot explain. It explains both why the NOW moves, and why it moves at a constant rate. I will discuss why I think these are advantages in the final section.
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spelling mit-1721.1/617272022-09-30T09:25:21Z Why Does Time Pass? Skow, Bradford Massachusetts Institute of Technology. Department of Linguistics and Philosophy Skow, Bradford Skow, Bradford According to the moving spotlight theory of time, the property of being present moves from earlier times to later times, like a spotlight shone on spacetime by God. In more detail, the theory has three components. First, it is a version of eternalism: all times, past present and future, exist. (Here I use “exist” in its tenseless sense.) Second, it is a version of the A-theory of time: there are non-relative facts about which times are past, which time is present, and which times are future. That is, it is not just that the year 1066 is past relative to 2007. The year 1066 is also past full-stop, not relative to any other time. (The A-theory is opposed to the B-theory of time, which says that facts about which times are past obtain only relative to other times.) And third, on this view the passage of time is a real phenomenon. Which moment is present keeps changing. As I will sometimes put it, the NOW moves from the past toward the future. And this does not mean that relative to di erent times, di erent times are present. Even the B-theory can say that 1999 is present relative to 1999 but is not present relative to 2007. No, according to the moving spotlight theory, the claim that which moment is present keeps changing is supposed to be true, even from a perspective outside time. My main goal in this paper is to present a new version of the moving spotlight theory (though in some respects the theory I present also resembles the growing block universe theory of time). This version makes a connection between the passage of time (the motion of the NOW) and change. In fact, it uses facts about change to explain facts about the passage of time. The bulk of the paper is devoted to describing, in detail, how the theory works. I also believe that my new version has advantages over the standard version. It explains things that the standard version cannot explain. It explains both why the NOW moves, and why it moves at a constant rate. I will discuss why I think these are advantages in the final section. 2011-03-18T16:16:09Z 2011-03-18T16:16:09Z 2011-01 Article http://purl.org/eprint/type/JournalArticle 1468-0068 http://hdl.handle.net/1721.1/61727 Skow, Bradford. “Why Does Time Pass?.” Noûs (2010): no. doi: 10.1111/j.1468-0068.2010.00784.x © 2011 Wiley https://orcid.org/0000-0002-7892-4540 en_US http://dx.doi.org/10.1111/j.1468-0068.2010.00784.x Noûs Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Wiley MIT web domain
spellingShingle Skow, Bradford
Why Does Time Pass?
title Why Does Time Pass?
title_full Why Does Time Pass?
title_fullStr Why Does Time Pass?
title_full_unstemmed Why Does Time Pass?
title_short Why Does Time Pass?
title_sort why does time pass
url http://hdl.handle.net/1721.1/61727
https://orcid.org/0000-0002-7892-4540
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