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i would think that the nature of evolution means that anywhere that could potentially support organic chemistry would, given enough time and a safe position in orbit, develop some form of living organism
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# ? May 31, 2014 09:14 |
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# ? May 31, 2024 22:33 |
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after they found those organisms which lived off sulphur i became way more open to the idea of life being possible anyhwere and no matter what i will keep believing FTL travel is possible
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# ? May 31, 2014 09:18 |
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yeah actually most biologists i know think life, by some definition, is probably not that uncommon. we've had a few decades of repeatedly finding life where we think it shouldn't be able to be, and it's really rubbed our nose in the fact that our imaginations really aren't up to anticipating all of the stuff that evolution can do
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# ? May 31, 2014 09:19 |
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Farmer Crack-rear end posted:but i mean it doesn't bother me that a bunch of 'aliens' were basically just humans on another planet. it's not like a bumpy forehead or a ridged nose is a particularly meaningful distinction anyway. i liked that 9 times out of 10 TOS just said gently caress it the aliens look like humans who cares.
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# ? May 31, 2014 09:19 |
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haven't we literally found amino acids floating around in deep space and wasn't there that experiment where scientists put a bunch of methane, nitrogen oxides and co2 and water in a jar and shot it with electricity for a couple weeks and found all sorts of complex organic molecules that are required for life to form intelligent spacefaring life might be rare but i bet there are plenty of planets out there with weird alien trees and algae and critters running around
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# ? May 31, 2014 09:22 |
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Heresiarch posted:my earlier post actually has me thinking about a story idea Forrest Gump meets Independence Day! It'll be a blockbuster!
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# ? May 31, 2014 09:22 |
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as everyone else has already said life is just chemistry, and not particularly exotic chemistry at that. however evolution is all over the loving map so plausibly self-aware, curious, social intelligences with appendages capable of fine-grained manipulation and a highly developed ability to communicate ideas to others in order to build culture, tradition, and ultimately scientific technology may be vanishingly rare. this planet only hit on it once and there's nothing in the fossil record to suggest any of the previous dominant lines of animalia were heading down any promising paths. the dinosaurs had like 3 times as long to evolve as the mammals did and they just came up with better claws and kickass feathers.
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# ? May 31, 2014 09:26 |
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arguably humans only came up with tools because we didn't evolve kickass claws and feathers and other cool poo poo like that. what use does a hawk have for a gun or whatever? it can kill and eat nearly everything it can see and fly out of the way of everything it can't. if humans were competitive with the other animal life on this planet just on a biological level there probably wouldn't have been pressure to develop bigger brains. maybe that's what happened to the neanderthals, who were by all accounts stronger and faster than the contemporary homo whatevers
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# ? May 31, 2014 09:29 |
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ive got a p cool tail
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# ? May 31, 2014 09:30 |
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theadder posted:ive got a p cool tail text me
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# ? May 31, 2014 09:47 |
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SynthOrange posted:Forrest Gump meets Independence Day! It'll be a blockbuster! okay i'm not writing it now
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# ? May 31, 2014 09:49 |
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Sagebrush posted:haven't we literally found amino acids floating around in deep space amino acids are quite simple organic compounds, and what's interesting about the ones found in space is that they're found in equal proportions of left handed and right handed molecules. all amino acids in life on Earth are left handed. the Miller-Urey experiment is classic. even if what they had in their flasks isn't what was in early Earth's atmosphere it shows how little is needed to turn simple molecules into sticky organic chemistry.
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# ? May 31, 2014 10:51 |
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i suppose it shouldn't be surprising that it's dead easy to make a bunch of organic molecules that are needed for life i mean, it's not as if evolution is going to favour molecules that are *hard* to make; so earthican biochemistry should pretty much be made out of the absolute simplest poo poo that can possibly support complex replicators
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# ? May 31, 2014 11:34 |
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Sagebrush posted:arguably humans only came up with tools because we didn't evolve kickass claws and feathers and other cool poo poo like that. what use does a hawk have for a gun or whatever? it can kill and eat nearly everything it can see and fly out of the way of everything it can't. don't sign your posts anyway i wonder if maybe the reason we've been contacted by no interstellar expansionist aliens is just another anthropic principle thing, because if interstellar expansionist aliens had actually found this planet it would have been 100% owned by them and there is a 0% chance of another intelligent race arising
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# ? May 31, 2014 12:27 |
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qntm posted:anyway i wonder if maybe the reason we've been contacted by no interstellar expansionist aliens is just another anthropic principle thing, because if interstellar expansionist aliens had actually found this planet it would have been 100% owned by them and there is a 0% chance of another intelligent race arising yes
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# ? May 31, 2014 12:30 |
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Sham bam bamina! posted:no see it's aberrant in every attribute that's conducive to life as we know it but anything that hinders it is the universal norm axolotl farmer posted:the Miller-Urey experiment is classic. even if what they had in their flasks isn't what was in early Earth's atmosphere it shows how little is needed to turn simple molecules into sticky organic chemistry. Trig Discipline posted:yeah actually most biologists i know think life, by some definition, is probably not that uncommon. we've had a few decades of repeatedly finding life where we think it shouldn't be able to be, and it's really rubbed our nose in the fact that our imaginations really aren't up to anticipating all of the stuff that evolution can do the catch is that it's all simple life. the universe is probably awash in the equivalent of bacteria, amoeba, fungus, and slime molds. turning that into trilobite and dinosaur and mammal equivalents seems to be a good deal less common because of the various constraints on development suggested by the REH
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# ? May 31, 2014 12:36 |
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here's a fun observation: earth has been able to support large animals for at least the past 200 million years. now considering that there are many contemporary species which are social tool-users, it seems likely that this planet has had social, tool-using species hanging around on it for the past 200 million years. but only one of those species has ever built a civilization. so in my mind, that's the link in the chain that's most likely to be the great filter.
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# ? May 31, 2014 12:41 |
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FMguru posted:yeah, that's the point of the rare earth hypothesis. it turns out that our solar system, which seemed really mediocre and unexceptional compared to the rest of the galaxy (and which excited drake and sagan into thinking this meant life and intelligent life must be really common out there) is actually rather perfectly constructed as a place for intelligent life to develop. far enough from the dense center of the galaxy to not get constantly blasted by supernovae and gamma ray bursts (and the waves of debris they generate) yet not so far out as to lack in the metals you need for rocky planets and life. a single primary star so you get nice boring orderly orbits and no companion swinging around raising and lowering surface temperatures on long cycles. and jupiter, which does a wonderful job clearing most of the dinosaur-killers out of our path, either by herding them into stable orbits at its trojan points, or flinging them out of the system, or sucking them down itself. i wouldnt be surprised to learn that theres something unusual about our oort cloud, either. and it was a close run thing at that, as evidenced by the 65mya dinosaur blaster, or the impact which created the moon i agree but we're looking at life from our perspective. life may not need the environment humanity used to get where it is today. we keep finding life in weird places, even if it is simple life. even if we don't find intelligent life similar to ours, we might find some sort of native species on some planet among the billions out there.
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# ? May 31, 2014 12:54 |
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the raid: redemption is pretty awesome thanks to whoever suggested it during the dredd talk
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# ? May 31, 2014 17:09 |
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coffeetable posted:here's a fun observation: earth has been able to support large animals for at least the past 200 million years. now considering that there are many contemporary species which are social tool-users, it seems likely that this planet has had social, tool-using species hanging around on it for the past 200 million years. but only one of those species has ever built a civilization. the great filter here is whoever develops social tool use first kills and eats the competing species c.f. homo sapiens vs all other hominids
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# ? May 31, 2014 17:14 |
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Monkeyseesaw posted:i liked that 9 times out of 10 TOS just said gently caress it the aliens look like humans who cares. hint: star trek is not about space or aliens
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# ? May 31, 2014 17:15 |
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homo sapiens actually hosed the neanderthals et al into extinction, you can still find traces of the dna of other homos in the cold parts of europe
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# ? May 31, 2014 17:26 |
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Improbable Lobster posted:homo sapiens actually hosed the neanderthals et al into extinction, you can still find traces of the dna of other homos in the cold parts of europe either way, finger lickin good
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# ? May 31, 2014 17:30 |
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Heresiarch posted:okay i'm not writing it now you could have snuck in a scooty puff junior during the climactic battle
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# ? May 31, 2014 18:12 |
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Notorious b.s.d. posted:hint: star trek is not about space or aliens ya it's about racism and the cold war
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# ? May 31, 2014 18:25 |
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Improbable Lobster posted:homo sapiens actually hosed the neanderthals et al into extinction, you can still find traces of the dna of other homos in the cold parts of europe there was a small degree of interbreeding, but it wasn't like the Neanderthal population was absorbed into Homo sapiens. the traces are only found in people with a non-african genetic origin. Neanderthals originated in Eurasia, and never med Homo sapiens until they left Africa.
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# ? May 31, 2014 18:32 |
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Heresiarch posted:okay i'm not writing it now i like your idea
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# ? May 31, 2014 18:41 |
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Sagebrush posted:ya it's about racism and the cold war wagon train in space, bitch
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# ? May 31, 2014 18:48 |
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Notorious b.s.d. posted:hint: star trek is not about space or aliens science fiction is never about what it's about
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# ? May 31, 2014 19:09 |
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Improbable Lobster posted:homo sapiens actually hosed the neanderthals et al into extinction, you can still find traces of the dna of other homos in the cold parts of europe please gently caress me to death too
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# ? May 31, 2014 19:10 |
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wheatbay daynight posted:please gently caress me to death too text me
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# ? May 31, 2014 19:11 |
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saucepanman posted:text me the spirit is willing but the flesh is spongy and bruised
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# ? May 31, 2014 19:47 |
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the easiest solution to the fermi paradox is economic the costs of systematic exploration of nearby stars, developing colonies that gradually grow to spawn daughter colonies, and contining this process indefinitely is judged too great by any but the most adveturous species a much more common response to the challenge is to develop sophisticated interplanetary propulsion, colonize nearby planets and moons to reduce the chance of extinction, and to then only consider building huge generation ships for interstellar travel when it becomes clear your parent star will no longer be able to support your population. instead of exponential growth you get a slow leap-frogging that leads to a much slower rate of expansion, only generating a handful of new colonies every billion years. if one of these slow colonizers is encountered by a rare fast colonizer, they would likely be ignored, as they pose no realistic threat to the many colonies of the adventurous species and in any event are probably not competing for the same planetary real estate
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# ? May 31, 2014 19:50 |
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saucepanman posted:the raid: redemption is pretty awesome whoa i just watched that with the wife last night. it was indeed p great
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# ? May 31, 2014 22:30 |
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FMguru posted:but theyve been running those experiments for half a century and have never gotten anything other than simple amino acids, which would indicate that turning amino acids into something a little more self-organizing and replicating is a trickier than we thought. yeah but nature had a flask a couple billion times larger, with more poo poo in it, and orders of magnitude more time to stir things up. it doesn't have to be a common occurrence to happen on that scale, given that it's a self replicating process. if the odds of getting a self-replicating process in any given teaspoon of primordial whatsit are one in a hundred billion, that probably still means it's happening once a day SOMEwhere. it could be that we've got the conditions exactly right and it's the difference between buying a lottery ticket and buying EVERY lottery ticket FMguru posted:the catch is that it's all simple life. the universe is probably awash in the equivalent of bacteria, amoeba, fungus, and slime molds. turning that into trilobite and dinosaur and mammal equivalents seems to be a good deal less common because of the various constraints on development suggested by the REH yeah i don't have any particular feeling about whether or not complex life is common, so i just remain agnostic about that. from my understanding of life in the broad sense, though, i think it's probably pretty drat common
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# ? May 31, 2014 22:36 |
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axolotl farmer posted:there was a small degree of interbreeding, but it wasn't like the Neanderthal population was absorbed into Homo sapiens. my wife is neanderthal as heck, she's in the 97th percentile on 23andme. she makes it look good though
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# ? May 31, 2014 22:38 |
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Heresiarch posted:my earlier post actually has me thinking about a story idea that would be a good story but there are two problems that leap out at me: - how are the postorgs able to bridge space to "bootstrap" through biologicals? or is this the point that's inevitable with every sci-fi treatment where you just go "exotic physics" - it would have to be a really long book or series of books to really take advantage of the warfare between multiple invading forces and that takes a lot of effort
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# ? May 31, 2014 22:45 |
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another problem with writing a book, is that you must write a lot of words, and stuff.
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# ? May 31, 2014 22:48 |
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Notorious b.s.d. posted:hint: star trek is not about space or aliens i would argue that star trek (as originally conceived) is about hope
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# ? May 31, 2014 22:49 |
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# ? May 31, 2024 22:33 |
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Smythe posted:another problem with writing a book, is that you must write a lot of words, and stuff. i mean a tome or series as opposed to a novella or novel,
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# ? May 31, 2014 22:49 |