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Old 05-06-22, 06:24 AM   #1
Catfish
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re life everywhere and not being a rare occurrence

Quote:
Originally Posted by Skybird View Post
Thats just a hypothesis, still. Romantic, but speculative. [...]
It might be that this would crush us and destroy us by collective despair more fundamentally than finding that there are hostile aliens coming to earth.
To think that life forms are only to be found on one planet (earth) would be as terrifying for humanity as meeting extraterrestrial life. Whatever, the probability for being alone is infinitesimal scarce.

Radio waves are travelling quite slowly, it will take some more hundreds of years to reach the next planet, let alone an inhabited one.
If what remains of those signals is not totally garbled

a) the information sent has to be received
b) understood
c) interpreted
d) wake interest; if there is any sicentifically, socially or in regard to conquest, earth could get noticed, and maybe contacted.

But maybe no one is interested and earth is just another sh!thole among millions of more interesting places. There is just no reason to "fly" around and visit silent planets just so, far too much of those.
With FTL flight even reaching the ouskirts of this galaxy is impossible in a human lifetime. Travelling FTL should be possible though, but it would not be a "flight" at all.

I would also advise it is rather unwise to indisciminately broadcast all kinds of information. Some sentients might rather hide from predators, and with the latter i do not mean humanity.

Afaik only one science fiction author here ever mentioned the dark forest idea which is
1. All life desires to stay alive.
2. There is no way to know if other lifeforms can or will destroy you if given a chance.
3. Lacking assurances, the safest option for any species is to annihilate other life forms before they have a chance to do the same.

"Since all (lifeforms) [...] are risk-averse and willing to do anything to save themselves, contact of any kind is dangerous, as it almost assuredly would lead to the contacted race wiping out whoever was foolish enough to give away their location. This leads to all civilizations attempting to hide in radio silence"

Game theory, rather pessimistic.

https://bigthink.com/surprising-scie...om-aliens-yet/
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Old 05-10-22, 04:21 AM   #2
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Way back in 1952, there was the Miller–Urey experiment, an attempt to see if theories of life being spawned from a chemical process in the very far distant past of the earth was possible; it yielded interesting results...


Miller–Urey experiment:

https://en.wikipedia.org/wiki/Miller...rey_experiment


I first heard about the Miller Experiment in the mid-60s from an article by someone who was raising an alarm over the continuation and/or expansion of the original experiment; the author was trying to put the kibosh on the experiment and those like it as a whole, mainly over concerns it was contrary to Christian belief in Creationism; it can be easily seen how a provable scientific basis for the creation of life would threaten the religious sectors; if life can be produced from mere chemical reactions, what the purpose of and power of deities?...



Quote:
Originally Posted by Catfish View Post

...

Radio waves are travelling quite slowly, it will take some more hundreds of years to reach the next planet, let alone an inhabited one.
If what remains of those signals is not totally garbled

a) the information sent has to be received
b) understood
c) interpreted
d) wake interest; if there is any sicentifically, socially or in regard to conquest, earth could get noticed, and maybe contacted.

...




<<<BREAKING NEWS>>> <<<BREAKING NEWS>>> <<<BREAKING NEWS>>>


It has been learned a transmission intercepted from space has been decoded and translated:



 
]










<O>
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Old 05-10-22, 04:43 AM   #3
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^

<o> You are here again

The Miller experiments showed that life can indeed be created out of anorganic material, yes. Then there was Oparin and the coacervates, both those and more recent experiments show that "abiogenesis" is possible.

So there is no need to panspermia to get biological life going on planet earth, and sure it develops on other planets as well.

Still the existence of carbonaceous chondrites has to be put into the equation, those are "coal" meteorites that were not created on a planet, but carry amino acids obviously formed in space. Less than 5 percent of meteorites consist of this stuff, lots of them will burn by entering a dense atmosphere, but a tiny portion would be enough
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Old 05-10-22, 03:29 PM   #4
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Old 05-14-22, 02:32 AM   #5
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There was a fumy, sort of 'throw away' joke, in the first episode of the John Lithgow comedy series, 3rd Rock From The Sun; the premise of the show was a quartet of aliens, in human guise, arrive in their spaceship (a Rambler classic convertible) on a mission to study the human race; at the end of the episode, the aliens are sitting in the Rambler going over what they've experienced on their first day; one of the aliens turns on the car's radio and the song Louie, Louie by the Kingsmen starts to play; they all turn towards to the radio listening intently as one of the aliens says "Oh listen! That's that radio signal Earth keeps beaming into the galaxies!"...




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Old 05-18-22, 05:32 PM   #6
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Old 05-22-22, 09:40 AM   #7
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https://www.bbc.com/news/av/science-...nment-61540945


This is more like I think about these things nowadays.

In the past, in young years, I assumed quite the opposite, and that life, intelligent life, and civilizations would be common in the universe. But I find it hard to support that view any longer, I had to change my mind.
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