AAFitz wrote:Neoteny wrote:Loosely, yes, through natural selection, or something similar to it.
Let me put it this way. Earth is an open system. It is clear that everything around us has increased in "order" with respect to other planets we observe. Without any added energy, everything would degenerate back into dirt and rock and metal. However, we are getting, and have been for several billion years, a massive infusion of energy from the radiance of the sun. So, over time, a significant portion of that mass of energy has been harnessed by natural selection (after the genesis of life, abiogenesis may have come about from other energy sources) to build up the "complexity" and "order" in our world. This is done at the expense of a massive amount of entropy put out by the sun. Heat energy is (if I remember my science correctly) some of the energy that possesses the least "order" by nature. And there is massive amounts of heat given off by the sun to give even our overall solar system a net decreasing value entropy-wise, even with the small (though seemingly large to us) increase in order on our planet. Our complexity could never increase to a value higher than what the sun could put out (plus whatever we could create from what's around us), and the sun puts out energy magnitudes of order higher than we could ever hope to match.
Is that clear?
Not really. The only thing restricted by the output of the sun, is the output of the sun. It may very well affect complexity, but it certainly does not cap our capability of future complexity. It could at best only be a mere factor in such restraint.
In fact, its possible that the sun could diminish in output suddenly, which could theoretically spur an increase in complexity.
If you only meant that we are bound by energy amounts available from the sun, then yes, that amount is most definitely influenced by the output of the sun, except that it is not impossible to imagine that there may very well be a way to actually artificially increase the output of the sun. Obviously, it would mean using elements found here, though more likely somewhere else.
In any case, complexity is not governed by energy, per-se, and there is no direct causal link. It is possible that less would mean more complexity, and more would mean much less complexity. Sun output is only a factor, and cant be said to always increase complexity, or limit complexity.
I don't think that reduces my clarity. Energy is the restricting factor for life (as we know it) and without the input of energy from the sun, we would indeed have to rely on what is locally available (which I mentioned previously, and is, compared to the sun, relatively nothing), and once that energy runs out, there would be no factor capable of boosting complexity. The limiting factor for life on earth (and thus the level of complexity on earth) is the energy available, and the vast majority of the energy available comes from the sun. Not like any of that really affects the gist of my argument at all.
Lionz wrote:Would the creation of an RNA molecule (let alone a light sensitive pigment), not be an example of order increasing?
Sure. What is the issue with that? The initial order is created by an influx of energy, which, through natural selection, increases in order (as energy is constantly added into the system).
nietzsche wrote:It's no small task to be an atheist, every now and then you have to remind yourself why you keep going on, why you keep respecting a moral code.
I would like to note that this is not necessarily representative of atheist thought. Quite a few of us are very confident in our moral code and will to live.
Lionz wrote:Frigidus,
Engineered Environment
Well, Miller and Urey, in their experiment, both excluded oxygen. There is a reason they did that. They had what’s called a reducing atmosphere. The problem is if you have oxygen, that creates what’s called ozone. And ozone is essential to filter out UV light. You have to have oxygen to make ozone. And ozone has to be there or else the Ultra Violet light comes down and destroys anything here on earth. So they have to have oxygen or you cannot get life to evolve because it would be destroyed.
Another problem: oxygen is found in the lowest rock layers. I don’t believe the geologic column exists anywhere in the world. But even by their thinking, the oldest rock layers have oxygen in them.
Also, one of the gases he used was ammonia and UV light will destroy ammonia. So he has to have oxygen to make this work. Life couldn’t possibly evolve without oxygen. The problem is if you have oxygen, it will oxidize whatever you make.
See, in the experiment he had, he very carefully trapped out the product that he made. He filtered it out so it wouldn’t circulate through again because the lightning strike would be millions of times more likely to destroy what he made then it would be to create what he made. That’s not realistic for real life. You don’t get to trap out what you make when you are in the ocean.
What he made was 85 % tar, 13 % carboxylic acid, and only 2 % amino acid. And out of that only 2 amino acids were created. And those amino acids quickly bond with the tar or the carboxylic acid. He came nowhere close to making life. And the amino acids he made, [there were] basically only two and there are twenty different ones required for life. No, don’t let them tell you that they made life in the laboratory.
Amino Acid Scrabble
See, amino acids are sort of like letters of the alphabet. There are 26 letters in the English alphabet and from those 26 letters you can make millions of words. And you can arrange those words and make an infinite number of sentences. So, what he made was like making a few letters of the alphabet. Problem, half of those were right handed and half were left-handed. If you dropped letters on the floor, half of them would land upside down and backwards. Well, that’s not any good for making a common sense word. And half of the letters he made were backwards. There was a real problem with that. The smallest proteins have 70 to 100 amino acids in precise order and they are all left-handed. DNA and RNA are all right handed and there are millions of those in order. Now, what are the chances of dropping letters of the alphabet on the floor and ending up with 70 to 100 of them in an exact order, all of them right handed? The chances are zero! That will never happen! But the evolutionist has to believe that it happened. They take that totally on faith. They have not made life in the laboratory.
Brownian Motion
By the way, proteins (which they wanted to create from those amino acids—[amino acids] bond to make proteins) they un-bond in water much faster than they bond, and the oceans are completely full of water to the top. And Brownian motion is going to drive them away from each other. It is not going to bring them together. This experiment was a total failure.
Before diving into this, I would like to say that it's a bit disingenuous to use someone else's words without actually citing where they came from. This is apparently from a seminar given by Dr. Kent Hovind (Dr. Dino himself), though I couldn't find it on the CSE website. Here it is elsewhere.
http://wiseoldgoat.com/papers-creation/ ... _1999.html
On another note, I just remembered why I haven't heard from Dr. Dino in a while. It's because he's in
jail. But that's enough character assassination. Let's look at what he said.
First is his issue with the exclusion of oxygen. The current thought is still that oxygen was extremely rare in the early atmosphere, and the oxygen found in those older rocks (that Hovind doesn't believe exist) exists at extremely low levels, as would be expected if there was not much free oxygen. Additionally, the experiment Hovind is criticizing is the very first, most primitive of these experiments to be done. Plenty of other experiments have been done under a variety of different atmospheric conditions, and many types of amino acids have been derived (another interesting note, scientists have gone back and reanalyzed tubes [that were never opened, of course] from the original experiment with modern techniques and found an impressive array of amino acids. Much more than Hovind would lead you to believe. I can't recall the exact number off-hand, but I think it represented the close to if not the full complement of amino acids required for life).
Next up is the UV. Sure there was plenty of that, but there's no need to think that the new particles of life just stayed at the surface. They could have been forced down far below the surface, or clung to the undersides of rock, or even may have formed using the energy from geothermal vents. All of those could have provided shelter from UV (and also further lightning strikes).
Then we come to Hovind's DNA scrabble. First off, the odds of what he is describing are not zero. They are vanishingly small, but they are not zero. If every person in the world did that for a whole day, we might find one case that looks kinda like the combination would work. We might not, but if we did it day after day, we probably would in short time.And that's really what scientists are claiming happened. DNA and RNA probably didn't just form randomly. I think it was probably a simpler molecule. All it needed to do was be able to replicate itself, and then natural selection would be able to work on that replicator to lead to RNA or DNA and whatever else. It needn't be a sequence of 70 amino acids. It very likely was smaller, and built up over time.
Finally I would like to call into question Dr. Hovind's ability to understand what he's talking about. He makes the assertion that Brownian motion would only serve to drive proteins apart, and also that water increases dissociation of proteins. If this were the case, how would proteins survive in our body which has quite a high water content? Brownian motion is purely random motion that is not powerful enough to break up proteins, and water does not have a purely destructive effect on all proteins. There are many that are hydrophobic, but there are very obviously quite a few used in life forms that do just fine in water.