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Letter: Universes for life

Published 11 January 2006

From Derek Bolton

Leonard Susskind comments on the anthropic principle – the proposal that the universe appears miraculously well-tuned to our kind of life because those are the conditions for us being here to make this observation – saying it “requires the strong assumption that our kind of life is the only kind possible” (17 December 2005, p 48). Not so.

Suppose merely that almost all possible intelligent life requires conditions just as finely tuned – however different to ours. It would follow that most intelligent life forms would find themselves in remarkably special circumstances.

Birchgrove, New South Wales, Australia

Issue no. 2534 published 14 January 2006

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