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EmergenceContemporary Readings in Philosophy and Science$
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Mark A. Bedau and Paul Humphreys

Print publication date: 2008

Print ISBN-13: 9780262026215

Published to MIT Press Scholarship Online: August 2013

DOI: 10.7551/mitpress/9780262026215.001.0001

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Is Anything Ever New? Considering Emergence

Is Anything Ever New? Considering Emergence

Chapter:
(p.269) 15 Is Anything Ever New? Considering Emergence
Source:
Emergence
Author(s):

James P. Crutchfield

Publisher:
The MIT Press
DOI:10.7551/mitpress/9780262026215.003.0018

This chapter discusses some of the most engaging natural phenomena, those in which highly structured collective behavior emerges over time from the interaction of simple subsystems. Emergence is generally understood to be a process that leads to the appearance of structure not directly described by the defining constraints and instantaneous forces which control a system. Over time “something new” appears at scales not directly specified by the equations of motion. An emergent feature also cannot be explicitly represented in the initial and boundary conditions. A feature emerges when the underlying system puts some effort into its creation. These observations form an intuitive definition of emergence. For it to be useful, however, one must specify what the “something” is and in what manner it is “new.” Otherwise, the notion has little or no content, since almost any time-dependent system would exhibit emergent features.

Keywords:   natural phenomena, emergence, emergent feature, time-dependent system, collective behavior

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