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184 pages, Paperback
First published April 3, 2014
• p.12 “… if Gaia's goal is to keep the Earth habitable”—no, it bloody isn't!
• p.34 Plays the Galileo/lone-genius card.
• p.43 Uses the word ‘evolution’ to apply to Earth as a whole—damn confusing!
• p.43 Use of word ‘for’ in 2nd sentence implies purpose (wrongly).
• p.53 (bottom) uses language of intent again—very confusing!
• p.61 “The idea that I am trying to launch here is: the appearance of new species naturally [… is a response] to need.”—RUBBISH! This is the language of Lamarck!
• p.97 “If Gaia exists”—what is this supposed to mean? [i.e. How can a metaphor ‘exist’?]
• p.149 “[fossil fuel] is part of Gaia's self-regulation.”—Bollocks! It might be regulating, but it's not self-regulation.
Some of the difficulties in accepting Gaia come from confusion over my use of the word ‘goal’. Engineers and most physicists use the word, or its synonym ‘aim’, openly and without embarrassment [aside: I'm not sure if they do] when describing a dynamic system that self-regulates and sustains a constant state, and strongly resists perturbation from that state. […] Both spinning tops and Gaia are dynamic systems; the top's goal is to spin on its axis of rotation; Gaia's goal is to maintain a habitable environment for whatever is its biosphere.
The semantic problem arises because the definitions of ‘goal’ and ‘purpose’ overlap. Purpose usually implies conscious action, intelligently designed. But goal can be an engineering or systems science metaphor [my emphasis], and is only concerned with reaching the stable state of a dynamic system, not with an explanation of how the state was reached.