Time

The philosophical debate about time is characterized by tensions between competing conceptions, with common sense suggesting an objective present and science recognizing neither feature. McTaggart's argument for the unreality of time gave rise to the A-theory/B-theory debate, with each theory in tension with either ordinary or scientific thinking. Reconciling the A-theory with science is challenging, but the B-theory has better prospects for accommodating ordinary thinking about time.

Format: Paperback / softback
Length: 75 pages
Publication date: 23 December 2021
Publisher: Cambridge University Press

Philosophical reflection on time is marked by a profound tension between competing conceptions. Various sources of evidence lead to divergent conclusions regarding its nature. Common sense posits an objective present and a dynamic time, while scientific inquiry does not acknowledge either characteristic. This Element explores the argument put forth by McTaggart, which exemplifies this tension, ultimately giving rise to the A-theory/B-theory debate. Each theory finds itself at odds with either ordinary or scientific thinking, necessitating the accommodation of the competing conception. Reconciling the A-theory with scientific principles appears challenging, while the B-theory offers a more promising avenue for accommodating ordinary perspectives on time.

Introduction:
Time is a fundamental aspect of our existence, shaping our experiences, perceptions, and understanding of the world. Philosophical thinking about time has been a rich and complex endeavor, with various schools of thought offering different perspectives on its nature and essence. This Element will examine the tensions between competing conceptions of time, drawing from various sources of evidence and philosophical frameworks.

Competing Conceptions of Time:
One of the central tensions in philosophical thinking about time is the debate between the A-theory and the B-theory. The A-theory posits that time is an objective reality, existing independently of human perception and consciousness. In contrast, the B-theory suggests that time is not an objective reality but rather a human construct, shaped by our experiences, perceptions, and cultural norms.

Sources of Evidence:
Different sources of evidence yield different conclusions about time. Common sense, for instance, suggests that there is an objective present, and that time is dynamic. This view is supported by the experience of change and the perception of the passing of time. However, scientific inquiry does not acknowledge either feature. Scientific theories, such as relativity and quantum mechanics, propose alternative frameworks for understanding time, which do not align with the A-theory's notion of an objective present.

McTaggart's Argument for the Unreality of Time:
One of the most influential arguments in favor of the B-theory is McTaggart's argument for the unreality of time. McTaggart argued that time is not an objective reality but rather a human construct, created by the human mind to order and make sense of the changing world around us. He proposed two main theses:

The A-theory/B-theory Debate:
The A-theory/B-theory debate has been a central feature of philosophical thinking about time. The A-theory posits that time is an objective reality, existing independently of human perception and consciousness. The B-theory, on the other hand, suggests that time is not an objective reality but rather a human construct, shaped by our experiences, perceptions, and cultural norms.

Reconciling the A-theory with Science:
Reconciling the A-theory with scientific principles appears challenging. Scientific theories, such as relativity and quantum mechanics, propose alternative frameworks for understanding time, which do not align with the A-theory's notion of an objective present. For example, relativity theory suggests that time is not an absolute concept but can be measured and manipulated by observing the effects of gravity and other forces. Quantum mechanics, on the other hand, introduces the concept of spacetime, which is a four-dimensional continuum that combines the properties of space and time.

Prospects for the B-theory:
Prospects for the B-theory appear more promising. The B-theory can accommodate ordinary thinking about time, which posits an objective present and a dynamic time. The B-theory suggests that time is not an objective reality but rather a human construct, shaped by our experiences, perceptions, and cultural norms. This view allows for a more flexible and nuanced understanding of time, which can be integrated with scientific theories and our everyday experiences.

Conclusion:
In conclusion, philosophical thinking about time is characterized by a profound tension between competing conceptions. Different sources of evidence yield different conclusions about time, with common sense suggesting an objective present and a dynamic time. Scientific inquiry, on the other hand, does not acknowledge either characteristic. The A-theory/B-theory debate exemplifies this tension, with each theory finding itself at odds with either ordinary or scientific thinking. Reconciling the A-theory with science appears challenging, while the B-theory offers a more promising avenue for accommodating ordinary perspectives on time. As we continue to explore the nature of time, it is essential to consider the various perspectives and theories that have been put forth, and to seek a deeper understanding of this fundamental aspect of our existence.

Weight: 140g
Dimension: 152 x 228 x 8 (mm)
ISBN-13: 9781108940726
Edition number: New ed