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VK4LU > SETI 01.11.03 07:30l 38 Lines 1779 Bytes #999 (0) @ WW
BID : 668-VK4LU
Read: DB0FHN GUEST
Subj: RE- all that jazz
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Sent: 031101/0502Z @:VK4TUB.#NQ.QLD.AUS.OC #:21296 [WormHoleBBS] FBB7.00i
From: VK4LU@VK4TUB.#NQ.QLD.AUS.OC
To : SETI@WW
read Alans missive with interest. I my opinion SETI people are missing the
whole point.
The facts are that we have not been contacted by an ETI. Life developed on
Earth 3G5 Years ago. Until 500M Years ago life remained more or less
unicellular. I wonder about these last two.
A while ago I watched a program on Mars on the box. What stuck me was a
statement that the precession of Mars, compared to the Earth, is unstable.
Mars periodically flips so that its rotational axis faces the
sun. This is not the case with Earth. The difference is that Earth has a
very close satellite almost as big as Earth which damps this precession.
For long periods Earths North Pole has pointed more or less at Stella
Polaris. Does it flip? Did it flip regularly enough, up to Half a Billion
Years ago, to prevent multicellular life developing?
It seems logical to me that most earthlike planets in the Universe have
simple life forms. For life to evolve to sentient forms would seem to
require the Half Billion Years it has taken for simple life forms to develop
into us.
How many Earth-like planets would have a stabilizing Moon like ours? I
would suggest that One in a Billion would not be a conservative estimate
of the number of Earth-like planets with Moons like ours.
The only other point I would raise is to compare modern times with the
1770's. Captain Cooks 'Endeavour' was beached for repairs in Far North
Queensland. A few months later, an Aborigine, who had seen the boat with
its European crew, was at a Corobboree a few hundred Kilometers away. I
imagine he would have been greeted with a certain amount of derision as he
described what he had seen. We already have crazies who maintain they have
met ETI.
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