Biologist (Almost) Creates Artificial Life
Aditya Malik writes "Wired has an interesting story up about how a lab led by Jack Szostak, a molecular biologist at Harvard Medical School, is building 'protocells' from artificial molecules which are very close to satisfying the conditions for being 'alive.' 'Szostak's protocells are built from fatty molecules that can trap bits of nucleic acids that contain the source code for replication. Combined with a process that harnesses external energy from the sun or chemical reactions, they could form a self-replicating, evolving system that satisfies the conditions of life, but isn't anything like life on earth now, but might represent life as it began or could exist elsewhere in the universe.' This obviously raises some questions about creationism, not to mention some scary bio-research-gone-wild scenarios."
I know they aren't really Von Neuman machines, but that phrase always puts me in mind of a replicator apocalypse...
Admit it. You post strawman arguments as AC so you get modded Insightful for refuting them, rather than Troll
That seems slightly ironic in this particular case, simply because these protocells were "created" by this Jack fellow. I don't believe in Jack.
He tried to create a phallic looking creature.
Similes are like metaphors
Since the scientist did the (almost) creating here, what questions would this raise? Now if the (almost) alive protocells had popped into existence by random chance and from a void of nothingness, that would raise some uncomfortable questions.
I judt got a nre Kinesis keybiartf so please excusr ant egregiou typos.
That's the sound of 100,000 /.ers trying to come up with the perfect obscure movie reference. We'd better get out of here before it gets ugly.
Too late...
Failure to follow this advice may result in non-deterministic behavior.
Personally, I know God exists
Out of interest, how do you rationalise something other than God creating life?
I ask because I noticed on the page your sig links to you write "the Bible is God's infallible word, and that he guided the translators perfectly to copy it." From the Bible:
God created the great sea monsters and every living creature that moves
Amnesty International
This reminds me of a joke:
One day a group of scientists got together and decided that man had come a long way and no longer needed God. So they picked one scientist to go and tell Him that they were done with Him.
The scientist walked up to God and said, "God, we've decided that we no longer need you. We're to the point that we can clone people and do many miraculous things, so why don't you just go on and get lost."
God listened very patiently and kindly to the man and after the scientist was done talking, God said, "Very well, how about this, let's say we have a man making contest." To which the scientist replied, "OK, great!"
But God added, "Now, we're going to do this just like I did back in the old days with Adam."
The scientist said, "Sure, no problem" and bent down and grabbed himself a handful of dirt.
God just looked at him and said, "No, no, no. You go get your own dirt!"
"Attempted murder, now honestly, what is that? Do they give a Nobel Prize for attempted chemistry?"
- Sideshow Bob.
The enemies of Democracy are
Combined with a process that harnesses external energy from the sun or chemical reactions, they could form a self-replicating, evolving system
It's called a Lava Lamp.
Do von neumann machines have to be made out of inorganic materials? If not, I think these qualify, although green goo might be more precise.
Why does this raise any questions about creationism? To the best of my knowledge, there are essentially no creationists who argue that life was created by humans or any other intelligent organisms(unless they are squirming around on the stand, trying to avoid the establishment clause). And nothing in any current evolutionary hypothesis precludes artificially constructed organisms any more than they preclude artificially constructed computers and hammers. The fact that we can, almost, produce simple organism analogs doesn't mean anything one way or the other, though I suspect that it will be a very convenient mechanism for exploring the capabilities of (relatively) low complexity structures, and will provide the opportunity to do evolutionary experiments from well defined baselines.
As for the bioresearch gone wild scenarios: all advances in knowledge create the potential for trouble; but I suspect that it will be quite some time before any synthetic organism becomes much of a threat. The world outside is an incredible hostile place, crawling with microbes that have been slitting each others' throats in innumerable horrid ways for millennia. The interaction will be something like this:
[Synthetic wimp organism]:"Hi, I'm synthetic."
[Hardbitten wild bacterium]:"I fucking killed my own family over a nanogram of glucose."
[SWO]:*gulp*
[HWB]:"Hey, look, one of the thousands of antibiotic compounds secreted by fungi as part of the brutal chemical war of all against all."
[SWO]:*Dies horribly*
Recall that bacteria have had around 4 billion years to turn Earth into a nanopocalyptic wasteland. Sure, they're everywhere, but they aren't dismantling everything else for parts. If this were a real risk, it would already have happened.
As a biochemist I'm surprised with the 'almost alive' statement in the article: they're still a long way to go. However, the work they are doing is interesting and is proof-of-concept for many elements of the RNA-world theory. I, like others, am surprised by the 'questions about creationism'. This show improper bias where this article doesn't approach creationism, but rather supports the validity of the evolutionary origin theory. The author has assumed that origin is a zero-sum game, and this is flawed and biased logic.
...... and idiots rule the world....
What exactly are the mountains of proof regarding the origin of the universe? I would most thoroughly enjoy reading about what caused the big bang, how the initial conditions came to be, and then fast forward to how living matter came into existence from non-living matter (probable conjecture will even do, as long as it has plenty of relevant research cited). This isn't evolution we are talking about (and even if it were, creation is not necessarily against evolution, kind of like how not all rectangles are squares).
Computers allow humans to make mistakes at the fastest speeds known, with the possible exception of tequila and handguns
It is evident that evolution must be taught in school, not as an objective truth, but so people will learn it enough to find flaws in it. However, many schools teach evolution as if it's the Ten Commandments, which should never be the way science is taught.
I once had a signature.
"This obviously raises some questions about creationism..."
Such as?
"Maybe there is no God? We were some experiment?"
The fact that life may be "creatable" does NOT infer that WE were. At least not at the hands of "gods" or other lifeforms.
Remember - Creationists do not accept questions - only answers, and answers that agree with what their parents told them.
They aren't supposed to question their god, for it's considered an unforgivable sin.
Personally, I believe (yes, an atheist with a belief) that the day humans stop questioning everything is the day that science, technology, and discovery will halt. These people, like Jack Szostak, are questioning life. "God" isn't an acceptable answer.
What, Canadian? Yeah, we knew that already, eh?
Out of interest, how do you rationalise something other than God creating life?
I don't understand the question. Can you be more verbose?
The Bible doesn't say anything against people creating life. People create robots, and robots can create robots.
God spoke to me.
Out of interest, how do you rationalise something other than God creating life?
People and animals create new life every day. Since in the usual course of events God isn't sole creator but rather shares a co-creatorship with the parents, there is no a priori reason to suppose the same co-creatorship could not exist in other situations.
Disclaimer 1: There are a whole slew of controversies surrounding this topic. I have purposely avoided those in order to give you a straightforward answer without getting bogged down in ancillary topics that would generate more heat than light.
Disclaimer 2: I would probably disagree with the GP on a number of theological issues (e.g. divinely inspired vs infallible or whether it extends to translations, copies or only the original text), so I don't presume to speak for the GP or the GP's religion, denomination or theological school. I can only offer my reasonably well educated but possibly flawed understanding of one school of orthodox teaching from at least one Christian denomination that I am familiar with.
Just curious: who created god?
If the questions is: where did we come from? And the answer is "god created us", then aren't we just moving the problem around? Unless you answer where god came from then I don't think you have answered anything.
My favorite quote doesn't fit into 120 characters. Now no one will like me.
Isn't HOW the scientist creates life more important than IF the scientist creates life when considering it's relevance to proving or disproving Creationism. If the scientist creates life using methods which have a decent chance of naturally occurring, wouldn't that be evidence against creation. Where if it took more extraordinary and unnatural methods to create life wouldn't it be evidence in favor of creation?
Male and female humans can rarely interact successfully (or at least satisfactorily).
Oh boy, are you doing it wrong!
We are they gray goo.
http://maps.google.com/?ie=UTF8&ll=40.743095,-74.045105&spn=0.869827,1.235962&t=k&z=10
Speaking of self replicating, I had sex last night with a supermodel (almost). Well, I guess that depends on what is meant by almost. Also, the definition of supermodel might be relevant here 8^)
Look where all this talking got us, baby.
Unless you answer where god came from then I don't think you have answered anything.
If the question is "Where did we come from?" and the 'truth' really is "God created us", then he has answered the question. You're moving the goalpost in this case.
It's like a creationist asking a scientist, "Where did we come from?" "The Big Bang." "OK, where did the Big Bang come from? If you can't answer that, then you're just moving the problem around, and you haven't actually answered anything."
Or more simply, if you're asking where cars come from, an appropriate answer is Detroit. You don't have to say where Detroit came from, or how steel gets made. The question has been answered. If you want an answer, good or bad, about ultimate origins, make sure you ask that question.
Computers are useless. They can only give you answers.
-- Pablo Picasso
If god is omnipotent, then god should be able to make something he cannot understand.
If god can, than god is not omniscient, because he would be able to understand it.
The same can be said in reverse.
Omnipotence and omniscience are mutually exclusive, thus a truly unlimited being is not possible.
VLC FOR MAC IS DYING! IF YOU DEVELOP, PLEASE SAVE IT!!
These guys aren't anywhere near making anything as complex as actual biological life. What they're doing is more like biological engineering than biology. TFA reports they are close to making a very simple self-replicating system...
it's important to note that this thing they haven't made yet wouldn't be able to self-replicate without 'help' from the researchers once they actually DO make it. Of course, down the road they would like to get something that could be autonomous, but even then it wouldn't be able to survive outside the lab.
From TFA:
and
So we're really far off from what you're speculating about...but, to address your concerns, alarmism about this research along the same lines as the people who are afraid that CERN will open a black hole that will swallow the earth (not saying you are alarmist...but some are).
Bottom line is, once they make a self-replicating artificial organism that can also exist outside the lab we should put it in the same level of quarantine that we give the nastiest of the nasty biochem. weapons or diseases we keep for research. It's not like we don't know how to safely work with dangerous substances/organisms.
Thank you Dave Raggett
Umm, questioning God isn't an unforgivable sin.
David questions God, Jesus questioned God, and he was completely without sin.
The only "unforgivable sin" is "blasphemy against the holy spirit" which amounts to seeing evidence of God's power and love and decrying it as the work of Satan. It's big theological mess to really wade through.
There are a bunch of people who argue that the King James version is the "correct, God-inspired translation", whereas there was no god-inspring going on for the newer translations such as the NIV and New World or the Darby, or any of the other 40 or 50 that are out there as linguistic exercises from various linguists and historians...
But, to me, it seems they're more stuck on their childhood fondness for bible verses full of "thou" and "doth" and "shalt".
It's only the biologists if they didn't reproduce it using means that feasibly would occur under historical circumstances.
If I pick up a rock, let go and it falls then I've found substantial evidence of the feasibility of spontaneous falling when an object is unsupported.
This instance of life isn't interesting to ambiogenesis but to rule out artificial life as tangential to creationism is an innaccurate blanket statement.
Whenever I start contemplating DNA (!), self-reproduction and the utter insanity of how complex the machinery of a single cell is, much less multicellular life, much less an animal, much less a self-aware brain, I just shake my head in wonder.
Doesn't bother me. Evolution is a massively parallel computation and has been going on for a LONG time.
If you skip DNA and just look at RNA it all gets easy:
- RNA caries genetic information and can be copied by an appropriate enzyme. (It's less stable than DNA, but quite stable enough to form the genomes of viruses. At the early stages, with no competition yet, being error-prone is actually good.)
- RNA has enzymatic activity. (It's not as strong or as versatile as protein-based enzymens. But it is quite capable of folding itself up into structures coded by its sequence, sticking together at appropriate places and presenting controlled patterns of charges on outer surfaces of a controlled shape, to become a little molecular machine.
Nucleotides line themselves up on a strand of either RNA or DNA to form the complimentary code sequence. They'll bind themselves into a strand given enough time and jostling. But if you have a RNA strand that also sometimes folds up into a little zipper-tab that runs down the lined-up RNA bases and sticks them together into a fresh strand you're all set:
- You'll eventually have both that and its compliment hanging around in the same container.
- At some point the strand that folds up into a zipper will zip up the new bases stuck to its complimentary strand. Then you have TWO zippers tab strands plus a complimentary strand.
- Now the zipper strand(s) start churning out new zipper strands and complimentary strands.
Slow at first, because rev 0.1 probably doesn't work well and it's completely dependent on randomly occurring bases for "food". But with the exponential under way the errors start to accumulate. Now you get some that are better at zipping than others - and they dominate the regions where they occur. And you get strands with multiple copies and other noise sequences - which can now evolve separately within the strand and evolve new functions.
Whenever a strand evolves one of its "spare" "genes" into a machine to help out, it becomes more successful.
From there you can evolve:
- Machines to make components of the system from other "useless" stuff.
- Machines to string amino-acids into useful structural stuff - and eventually better machines.
- Machines to control a container, creating the "cell" and its division mechanism.
- Machines to make backup copies of the RNA code in more stable DNA and then make more RNA from that.
and so on.
There's plenty of suggestions that this is what happened. For instance: Most of the machinery of RNA-directed protein synthesis - both most of the parts of the ribosome (the stringing factory) and all of the transfer RNA (the amino-acid carrier/code reader mechanisms) are RNA enzymes.
So, no, contemplating the current complexity doesn't bother me at all. It can all be explained by evolution from a single, simple, mechanism that could easily be produced in millions of years of random abiotic chemical reactions in a planetary scale vat of solar-irradiated, weather-stirred chemicals.
Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
The 'problem', if one may state it as such, is in your presentation of the options...
A. the universe always existed
B. it was created by something/someone.
That's really three options...
A. the universe always existed
B. it popped into existence due to something, we don't know what - we may never find out
C. it was created by someone, and we call that someone God.
B and C are distinctly different; just because I have no explanation of what caused the Big Bang, doesn't mean 'God did it'. Even if scientists told me right now that it's impossible to find out what caused the Big Bang (which is very likely), it doesn't mean 'God did it'. 'God did it' isn't an answer to a question - it is a belief. I have no problems with beliefs (Hello, I'm an agnostic), but too often the 'God did it'-approach is used as a substitute for actual answers.
Back on-topic... you don't ultimately need one or the other having to always have existed. Keep in mind that the prevailing idea is that 'before the universe existed' is a problematic sentence as there is no 'before the universe existed'.. time, if you will, did not exist until the universe began.
"Having not been made by natural evolutionary forces..."
A dude in a lab is just as much a force of evolution and nature as a comet fueling a primorial soup or whatever you think triggered life on Earth. You don't GET to go outside the system. There is no unnatural .
When the researcher adds the next improvement to these globs of goo that allows them to survive better they will have evolved inside the system of nature which includes the petri dish they may someday live in.
And if it comes to pass that one day they evolve into a symbiotic arm for amputees or a blob that eats chicago, that will be natural as well.
"The Adobe Updater must update itself before it can check for updates. Would you like to update the Adobe Updater now?"
...There are a bunch of people who argue that the King James version is the "correct, God-inspired translation....
Unless you know Hebrew and Greek, a way to get around this is to get as many translations you can afford and compare them. It turns out most of them agree amazingly well except those put out by specific organizations that have certain of their doctrines reflected in their own specialized translation.
All theory is gray
...I realize it's a fallacy to presume you believe 100% in the full text..
Anyone who can truly believe the first verse of the Bible, should have no problem fully believing the rest of it.
All theory is gray
... If an acceptable answer for where the universe came from is that it always existed...
The observed evidence is against the concept of an eternal universe. This used to be believed, but modern evidence points to a definite beginning of time, space and matter-energy. Scientists have labeled this creation event "The Big Bang" which arose from what they call a singularity.
The evidence is that ALL of the universe, including time itself and all laws of physics, came into existence from this singularity. Nobody can calculate back any further than about 10^-44 seconds AFTER the singularity appeared. Nobody has any idea where the singularity itself came from. It seems to us it came from nothing, but this is a belief in the same way as a belief in God.
All theory is gray
I'll take the random A+ high school biology student over a Wikipedia article. This is coming from interviewing people for a position at my business - you can see the Wikipedia in the resume and hear/feel it in their oral interviews. If you pay attention to Wikipedia, that is. I prefer free-thinking high school students to Wikipedia whores anyday.
Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
"As a Slashdot discussion on any scientific topic grows longer, the probability of it devolving into creationist-bashing fest approaches one."
I don't think so. If a creationist asks a scientist "Where did we come from" the scientist will go into evolution, the history of the earth, the history of our solar system, how stars are formed and how their death creates the heavier elements and how we think it all came from a big bang. When asked "where did the big bang come from?" the scientist should reply "we're working on it, here's what we know and think so far..."
This is very different from someone asking a creationist "where did we come from?" and he says "adam, eve, 7 days and nights, all from god." When asked where god came from he says "er, always been here, I guess"
god is often just used as a big logical dumping ground for everything that can't be explained. This is unfortunate, because it keeps (some of) us from working on the hard problems.
My favorite quote doesn't fit into 120 characters. Now no one will like me.
"ALL other religions and world views always place their version of God within our time-space-matter-energy universe, or as as part of it."
Balderdash. Hinduism for example says that this universe is one of many that have existed, and others will exist after it (their total number is supposedly greater than the drops of water in the Ganges). Each of them is created by Brahma The Creator, maintained by Vishnu the Preserver, and will eventually be destroyed by Shiva the Destroyer, who are mere avatars of The Great One, a being so complex that humans can only perceive minute and sometimes apparently self-contradictory aspects of it. The story says that one day to Brahma is greater than four thousand million human years, and when he sleeps at night, the Earth is destroyed, and will be recreated when he awakes. After Brahma has lived a number of these days equal to the days in a human life, Shiva will destroy this universe (an act that also destroys Shiva and Vishnu), leaving Brahma to create a new universe and new avatars of Vishnu and Shiva.
"ONLY in the Bible does the real, eternal self-existent God reveal Himself as One outside of and entirely independent of the Universe and its content."
Nobody who isn't living in complete ignorance of the writings of the many other religions that have existed during our history would make such a preposterous claim, because the African Kabuka and Mandinga religions have single gods who create the entirety of the universe, as does the original Korean religion (which calls the creator JuMulJu), the ancient Egyptian cosmogony of Ptah, and many, many other religions both ancient and modern.
I'm not going to change your sheets again, Mr. Hastings.
Evolved life wins.
We have had billions of years of self replicating machine eating each other for survival. What on earth do you think that they'll do to an organism which doesn't have that background?
Deleted
Since when were high school students 'free thinking'? At least the ones reading wikipedia are actively searching out information rather than only learning it because they have to. Yeah, I just watched Good Will Hunting for the first time last week ;) While the story is pretty exaggerated it has some truth. I didn't learn anything at university that I didn't already know, or couldn't have just learned by reading a textbook. Seriously. I was in fact much more interested in learning before I went to university, but part of that was just personal circumstances. I spent a lot of time during high school doing coding in my spare time, but since I had to start doing it for coursework/my job I just want to relax in my spare time..
If by a wikipedia whore you mean someone who will only have a cursory glance at the subject and not look into it in any further detail, then I agree though.
For something as nebulous as the definition of 'life' though, you could start in worse places than wikipedia for seeing a few different opinions. I'm seeing a lot of yahoo question and answer sessions whenever I google for info these days, and some of the answers are atrociously wrong, though presented in such a way as to try and sound like the person knows what they're talking about.
which is totally what she said
So, in order to be life, every molecule essential to the organism must have a corresponding chemical pathway? By that standard, humans or any other animal can't be considered life... we need to eat all kinds of essential nutrients, like vitamins and certain amino acids, because we can't synthesize them.
Here is the crux of the matter. You can either believe that the universe exists but was not created by anything, or you can believe that the universe must have been created by "God," who exists but was not created by anything.
Both beliefs require accepting the existence of something that was not created.
But we know the universe exists, we can directly observe that. Scientists only need to accept that this directly observable known thing called space-time didn't "come from" anywhere -- that it exists is a given.
Theists need to first accept that God exists at all -- for which there is no evidence, except the axiom that the universe had to "come from" somewhere -- and then accept that this unobservable God himself didn't "come from" anywhere.
So one belief is that an observed measurable thing exists but came from nowhere, while the other belief is that an unobserved unprovable thing exists but came from nowhere. Those are quite different.
If fate makes you a motorcycle, you become a motorcycle.
Nonaggression works!