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Perspectives on Neuroscience

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Defining life: synthesis and conclusions.

¹Institut d'Histoire et de Philosophie des Sciences et des Techniques, Université Paris 1-Panthéon Sorbonne, Université Paris 1/CNRS/ENS, 13 rue du Four, 75006 Paris, France. gayon@noos.fr

Origins of Life and Evolution of the Biosphere : the Journal of the International Society for the Study of the Origin of Life

|February 18, 2010

Summary

This summary is machine-generated.

Defining life remains an intuitive process, challenging to capture in a strict definition. This paper explores philosophical and scientific perspectives on defining life, distinguishing between lexical and stipulative definitions.

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Area of Science:

Philosophy of Science
Astrobiology
Origin of Life Studies

Background:

The concept of 'life' is primarily recognized intuitively by both scientists and laypeople.
Traditional philosophical definitions (animation, mechanism, organization) influence contemporary thought on life.
Distinguishing between lexical and stipulative definitions is crucial for scientific and philosophical discourse.

Purpose of the Study:

To explore the philosophical challenges and historical perspectives in defining life.
To synthesize major debates on the necessity and nature of life definitions.
To examine the relationship between defining life and understanding its origins.

Main Methods:

Philosophical analysis of historical and contemporary definitions of life.
Distinction between intuitive recognition, lexical definitions, and stipulative definitions.
Synthesis of debates on defining life, including criteria for self-maintenance, evolution, and reproduction.

Main Results:

Recognition of life is intuitive, but a universally accepted strict definition remains elusive.
Skepticism exists regarding a strong definition of life, yet criteria are valuable in specific contexts (e.g., exobiology).
Proposed definitions often include self-maintenance and evolution, though some emphasize a 'psychic' view.

Conclusions:

While a definitive 'life' definition is debated, conceptual frameworks are essential for scientific inquiry.
The understanding of life's origins is closely intertwined with how life itself is defined.
Context-specific criteria for life are crucial for fields like artificial life and astrobiology.