brin@cts.com (d.brin) writes:
> (1) galactic differential rotation 'smears' any spherical expansion shell.
> (Inner parts of the galaxy rotate faster).
This effect is likely to be too slow to be of any consequence, since
the expansion appears to be close to lightspeed; stellar motions are
insignificant compared to the replicator speed.
> (2) Bear in mind that complex ecosystems act to prevent prairie fire
> reproduction orgies. But such ecosystems are not in place at the beginning.
> When a virgin enthalpy source begins being exploited for the first time,
> the opportunistic species may breed spasmodically, use everyting up, and
> leave a wasteland behind, Wild swings of population may occur until
> predation and other limiters talke hold. This is one possible explanation
> for the local 'Great Silence.' (I'm discussing it in a coming novel.)
Reminds me of the ecosystems of a hay infusion.
Life seems to move towards self-organized criticality in the long run,
but it would be interesting to study the known cases of transients
when it starts far from it.
-- ----------------------------------------------------------------------- Anders Sandberg Towards Ascension! asa@nada.kth.se http://www.nada.kth.se/~asa/ GCS/M/S/O d++ -p+ c++++ !l u+ e++ m++ s+/+ n--- h+/* f+ g+ w++ t+ r+ !yReceived on Mon Dec 8 17:20:11 1997
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