Open in TheBrain

Davies, Paul

<p>Apr 23, 2010 2:44 PM &#160;I met &#160;Pam Grange see Keplers... &#160;ok with my presentation,

but better to have my own book to plug.&#160;

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PAUL DAVIES... English; &#160;one year older than me; &#160;physicist;

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wife is Pauline - not there;

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Eerie Silence is his new book &#160;&#160;(buy it second hand in several months)

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Frank Drake's estimate is &#160;10k civs in Galaxy. &#160;that would make them

about 1000 LY apart &#160;approx.

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That means they do not know we exist ... light cone hasn't arrived.

They cud know abt our atmosphere.

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Lighthouse beacon, say, sweeping in the plane of the milky way... &#160;might intercept it.

otherwise, best is to hope that we might be colinear with &#160;a ray from &#160;ET1 &#160;to ET2.

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need dedicated dish to look for beacon.

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We know rate of star formation.

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Crick &#160;thot origin of life was v improbably;

Jacques Monod &#160;"mankind is is alone" &#160;&#160;life is imposs rare. &#160;cuz of imposs of forming macromolecs.

frak accident.

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SETI is Quixotic &#160;(great adjective). &#160;QUIXOTIC

Popularized by Carl Sagan and Frank Drake.

Fell into disrepute... &#160;now riding wave of popularity again.

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Conferences in the Vatican and the Royal Society of London.

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Is life a cosmic imperative!!!????

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wud be great evidence if we find &#160;life 2.0 &#160;&#160;says Chris McKay.

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Ariz State Univ has &#160;2 bits of Mars rocks &#160;from &#160;meteroids... &#160;so planets seed one another.

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Mars cooled more quicly than we did &#160;(cuz its smaller) &#160;so, poss faster life origin.

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Almost all life is microbial.

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Workshop &#160;BEYOND Conference. &#160;? non-carbon based life.

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? &#160;arsenic-based life ... &#160;study of Mono lake &#160;(heavy arsenic contamination, being studied by

a female &#160;USGS researcher, young woman in the audience.

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All life on earth uas &#160;left handed &#160;amino acids and right handed &#160;CHO's

how abt MIRROR LIFE &#160;with reverse chirality.

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how abt a message in a bottle &#160;thorwn out at sea...

favorite example is a msg IN OUR DNA or in the dna of a species still alive.

prime numbers, &#160;etc.

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Q: &#160;how abt &#160;probing for earth like atmoshperes &#160;(a la &#160;TPF?)

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A: &#160;Kepler will find planets... &#160;he says &#160;TPF is not funded cuz too expensive.

(I later comment ... &#160;may get funding after Kepler discovers earth-like planets)

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Arecibo &#160;would NOT be able to pick US up is it were &#160;1000 LY away... tv stations too feeble.

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My Q: &#160;Rare Earth... &#160;microbes get going immediately; &#160;but complex life took

2 to 3 BYrs to get going? &#160;&#160;He gives indecipherable answer.

Does not buy rare earth arguemnt, cuz example of one.

cites &#160;Brandon Carter argument?

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Robin Hanson - the great filter

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Dyson spheres ... look for them.

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artifacts, probes.

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Post-bio intel ... &#160;he's a believer.

megabrains &#160;covering entire surface of a planet.

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Q: &#160;2 separate communities... &#160;&#160;scientists &#160;vs &#160;UFO &#160;beleivers...

Betty and Barney Hill

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he says he'smet &#160;Allan &#160;Meinig &#160;(USAF &#160;genl &#160;who coined term &#160;Close Encounters of the 3rd kind.

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he attirbs these to lucid dreaming and sleep disorders... yes.

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Q &#160;stable points... in solar system &#160;... to look for probes... eg poles of moon.

He says look at LaGrange points.

Look for plutonium... all natl pluton shud be gone... if we find any its a

dead give away that they were here.

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Paul is in charge of post-contact communication and protocol.

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