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27 March 2009

16 March 2009

15 March 2009

9 February 2009

7 February 2009

30 January 2009

  • curprev 08:4908:49, 30 January 2009Michael talk contribsm 4,476 bytes −2 small edits, clarify "some" conditions of sustainable civilizations, not "the" conditions, as the perspective should elucidate some necessary conditions but not claim to have a complete picture

11 January 2009

5 January 2009

31 December 2008

15 December 2008

14 December 2008

12 December 2008

  • curprev 12:2812:28, 12 December 200892.65.198.50 talk 2,608 bytes +105 Removed "As far as we know that would allow for many millions of human generations.", added "civilization in a billion years", clarifed perspective

3 December 2008

23 November 2008

10 November 2008

26 October 2008

25 October 2008

4 October 2008

1 October 2008

29 September 2008

19 September 2008

14 September 2008

13 September 2008

4 August 2008

3 August 2008

2 August 2008

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