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originally posted by: AnkhMorpork
a reply to: In4ormant
Good point. It would be a function of the number of earth-like worlds, which I suspect are very very rare and one of the main reasons we have been and are being visited by multiple alien races. Then again, maybe the 60 or so races are just part of an ongoing stream of races, all abiding, to a one, by the Prime Directive (for reasons hard to fathom) everywhere they go.
originally posted by: In4ormant
Maybe they all want to subjugate us but can't agree on who gets to. They only thing keeping them civil is not wanting to start a fight between themselves.
originally posted by: CatandtheHatchet
There are more sinister theories, than a prime directive.
It is possible that when a species reaches a certain technological level, that observers activate agents of destruction to remove that civilization, an ET civ which wont accept any competition in the universe might behave in such a manner.
Which would explain the silence
originally posted by: AnkhMorpork
All of this would suggest, rationally, that they have our best interests at heart and are not say, just waiting until we destroy ourselves so that they can move in without violating the prime directive.. er..
Do they protect and shield us from large ELE meteor impacts? Would they? Do they even need to if cosmic creative design principals are considered? Would that violate the Prime Directive?
This is part of the problem with disclosure, because of the socio-political implications of all these questions that only the aliens could answer but may be precluded from doing so, unless invited.., and wouldn't that lay low the power structures on earth?
Maybe disclosure and this prime directive issue are related, since they cannot impinge upon us against our will, but that when we are ready, the teacher will appear..
I think this whole idea raises some very interesting questions if we are being visited.
Contact would be just so momentous though, as it would radically alter our history and trajectory..
originally posted by: AnkhMorpork
originally posted by: schuyler
Every time one of these threads comes up I wonder who has ever denied it. I have personally never met anyone who has denied there is life elsewhere. To me it's a Straw Man argument. Somebody decides there are "billions and billions" of stars, therefore....life! as if no one has ever thought of that before. Reveling in their new-found brilliance they decide there must be a whole lot of deniers out there, so they decide to show these unseen deniers a thing or two and "prove" it by showing overwhelming numbers. Now there may actually be a few curmudgeons in the woodwork who are deniers, but they certainly are not culturally significant any more than flat-earthers, of which there are probably many more.
The Bottom Line is that the argument is completely unnecessary. And when you get right down to it, it doesn't actually prove anything. You're just playing with statistics.
Agreed. They also assume that "life" means earth-like world, with animals walking and flying around etc.
No doubt the universe is teaming with life of some kind, but earth-like worlds are not just a matter of a statistic based on x number of rocky worlds in the Goldilocks Zone. That's a false assumption, that x number of them will automatically produce a certain number of earth-like worlds.
We must also consider the uniqueness and specialness of what makes life on earth what it is and extrapolate from there, in particular, taking a look at things like the earth-moon-sun configuration, relative position within the galaxy (as someone else pointed out, closer to the galactic center, you have detrimental super nova material being ejected all over the place amid more tightly packed stars), the location of Jupiter serving as a solar system vacuum cleaner to mitigate ELE's. Earth is also in the sights of a neutron star, galactic blazer (Cygnus X3) which has been bombarding us with cosmic radiation which helps to accelerate evolution via random mutation (there are only one or two such objects in our galaxy).
It's a little juvenile to just assume that earth-like worlds are all over the place within our own galaxy, when we fail to consider precisely what has produced this Earth-like world that we live on, where, because of our single, giant moon, the earth is able to retain it's axis on the elliptical to produce the seasons via the process of perihelion and solstice, and retain a relatively fast rotational period (without tidal locking to the sun), allow for liquid water to be present over 90% of the planet's surface, enjoy relatively stable weather patterns, all of which contribute to long-tern, sustainable evolutionary development.
What's needed is a true and thorough galactic survey using an instrument like the Square Kilometer Array (coming on-line in 2020) that's capable of picking of the bio-signature of the atmosphere of a rocky water world to prove that it's a living world that may be earth-like in some respects.
On a positive, more optimistic note, we do know that there is at least one such world in our own galaxy, which does appear to bode well for the probability of other such worlds in the cosmos if the lowest probability is somewhere between 0 and 1 for any given galaxy.
I think even when we are able to conduct a full galactic survey that we will be lucky to find another one in our own galaxy where the conditions suitable for another earth-like world have been met.
If, otoh, you subscribe, as I do, to the idea of a super-intelligent design that favors life and in particular, this life here on Earth, then that would presume that there was some sort of astroengineering at work in the galactic formation that produced our world by design and by anticipation - in which case what could be done once in a galaxy, would be done as often as possible ie: God surely has more such tricks up His sleeve and seems to have a penchant for variety.
deep thoughts..
I've often pondered about the similarities and differences of what sentient, technologically advanced life, and life experience, might be like on another somewhat earth-like world. I think that their "reality" would be radically different in terms of how they would perceive the universe and their place in it, but at the same time, perhaps somewhat paradoxically, while their perceptual reality would be "out of this world", nevertheless, birds of some kind would still make noises and fly, and the breeze would blow through grasses and trees, and a bubbling brook would be heard to the sight of a beautiful sunset, the appreciation of which would not be lost on them and in that way we would both share something of the same vital life experience.
Are they in a sinless heaven maybe? Or are they so caught up in their social and technological pursuits that they simply fail to notice it, and carry on while taking it for granted? Do they laugh sometimes for no reason at all when caught up in the wonderment of it all? Do they too appreciate the nature of a good joke told by God (but without a punchline)? Do they possess mirth and charm, or might their purely logical hive mind, say, preclude that experience as intrinsic to the nature of things?
Would it be lonely at the end of science, able to see and know all things as they are, and go wherever you may go, and then come back again?
Do they believe in God, and what do they think about humanity's role in the cosmic drama?
I think they get the joke but that our own inability to do so perhaps might frighten them within the context of the prime directive.., but, that they are absolutely thrilled to be given something to examine, something to do, and to participate in again by simply observing, surveying and then on to the next place to see what's going on - but, back home, their breeze still blows, and their moon is a midnight sun mimicking the sun, just like it is here on earth (with only the smallest deviation from that vital configuration).
Our job is to make the aliens laugh, I think, but then to make darn sure that we come to fully understand that the joke's on us, and on them.
So I have this vision of all races of aliens someday returning to their home world, from the Earth and it's place in the grand cosmic drama and play of things, to the alien equivalent of ticker tape parades and hats in the air from here to kingdom come in a grand celebration, and not to anyone's chagrin where it may be said that "the last are first, and the first last, all with ears to hear (or their equivalent) let them hear!"
What, you don't think they read ATS?
It doesn't look like you read the link you cited, which clearly says the Fermi Paradox doesn't presume faster than light travel:
originally posted by: AnkhMorpork
If there is nothing according to the laws of higher physics that would prohibit faster than light (instantaneous) interstellar travel, and intergalactic travel, since the space in between is somehow effectively removed, then this raises the question of the Fermi Paradox (why no colonization ie: where are the aliens?).
Fermi Paradox
So I'm not sure why you're prefacing this with talk about faster than light; that's not what the Fermi paradox is based on. Also note that none of the hypothetical explanations are "maybe FTL isn't possible" because it isn't necessary for the paradox.
Even at the slow pace of currently envisioned interstellar travel, the Milky Way galaxy could be completely traversed in about a million years.
According to this line of thinking, the Earth should have already been visited by extraterrestrial aliens. In an informal conversation, Fermi noted no convincing evidence of this, leading him to ask, "Where is everybody?