What is Supervenience?

Supervenience

Quick Answer

Supervenience is a philosophical concept that describes a relationship between two sets of properties, where changes in one set (the higher-level properties) depend on changes in another set (the lower-level properties). It suggests that the higher-level properties cannot change without a corresponding change in the lower-level properties. This concept is often discussed in the context of the mind-body relationship in philosophy.

Overview

Supervenience is a way to understand how different kinds of properties relate to each other, particularly in philosophy. It means that if two things are identical in their lower-level properties, they must also be identical in their higher-level properties. For example, consider the relationship between the mental states of a person and their physical brain states; a change in someone's mental state, like feeling happy, must correspond to changes in their brain activity. This concept is significant in metaphysics as it helps explain how complex phenomena, such as consciousness, arise from simpler, underlying processes. It emphasizes that while higher-level properties depend on lower-level ones, they are not reducible to them, highlighting the complexity of the relationship between mind and body. Understanding supervenience allows philosophers to explore questions about free will, morality, and personal identity, as it frames how we think about the connections between different aspects of existence.

Frequently Asked Questions

What is an example of supervenience in everyday life?

An example of supervenience can be seen in the relationship between a person's mood and their facial expressions. If someone is feeling joyful, their facial expressions will typically reflect that joy, showing a direct connection between their mental state and physical expression.

How does supervenience relate to the mind-body problem?

Supervenience is crucial to the mind-body problem because it offers a framework for understanding how mental states depend on physical states. It suggests that while mental experiences are influenced by brain activity, they are not simply reducible to it, allowing for a more nuanced discussion about consciousness.

Can supervenience apply to moral properties?

Yes, supervenience can apply to moral properties by suggesting that moral values depend on non-moral facts. For instance, the moral quality of an action may depend on the intentions and consequences surrounding it, indicating that moral judgments cannot change unless there is a change in the underlying facts.