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Author Topic:   What is Life?
AlphaOmegakid
Member (Idle past 2906 days)
Posts: 564
From: The city of God
Joined: 06-25-2008


Message 150 of 268 (594370)
12-03-2010 8:43 AM
Reply to: Message 148 by bluescat48
12-03-2010 12:00 AM


Re: the actual problem
Great so at what wavelength does red end at?
620-750nm

This message is a reply to:
 Message 148 by bluescat48, posted 12-03-2010 12:00 AM bluescat48 has replied

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AlphaOmegakid
Member (Idle past 2906 days)
Posts: 564
From: The city of God
Joined: 06-25-2008


Message 162 of 268 (594438)
12-03-2010 12:32 PM
Reply to: Message 155 by New Cat's Eye
12-03-2010 10:24 AM


Re: the actual problem only exists in your mind
No, you didn't quite hit the point.
That's because your "point" is fuzzy.
Colors are not that hard to identify with the eye. I know yellow when I see it and I know blue when I see it.
Then you are applying a definition of those colors relative to your vision.
The problem is when we "zoom in" on the boundaries and then realize that they are fuzzy, there is a whole range of green in between them. The instrumentation helps expose that fuzziness.
So yellow is clear? Blue is clear? And green is fuzzy? Can't you also just as easily recognize green? It is defined as well.
See, what you are missing is that the reason you recognize any color at all is because it is defined. Sure, I agree with you that there is a continuum of light and colors. But isn't a ruler a continuum also? But can't we define 1mm, 1cm, 1m? Once we define it it is recognizeable.
Is there a visible difference in .999m and 1.0m. It's fuzzy at arms length, but is is clear close up, because of the definition.
For example, yellow is wavelengths of 590 - 560 nm and blue is 490 - 450 nm, in between we have green from 560 - 490 nm.
If we have light that has a wavelenth of 525 nm, should we put it on the yellow side or the blue side?
It is green, because it is defined that way.
Could we all agree that 525.1 nm is definately yellow and 524.9 nm is definately blue?
We could argue all we want. But if it is defined, it is defined.
Is light that is exactly 560 nm yellow or green?
Again, that depends on the definition.
When we zoom in that closely, we find that our compartmentalization of color, which seems to work just fine for the everyday "zoomed out" uses, fails to accurately describe the continuum of color that actually exists in nature.
Again, I agree that light is a continuum. But a continuum can be defined in science. However, You are claiming that "Life" is a continuum. So I ask you to establish that claim. Life is nothing like light.
So I have provided the seven pillars. what is fuzzy about them?
Its not the pillars that are fuzzy, just like the wavelength definition of yellow is quite clear. Its that life is fuzzy and not as easily distinguished from non-life as the definition suggests.
What you have here is a bold claim that needs supporting evidence. As I understand you, you are saying "life' is just a contiuum of chemical reactions. Ok, you need to establish that continuum.
For instance. Metabolism. All life has it. All non-life doesn't. It appears digital to me. Please demonstrate that this is a continuum.
Reacting to stmuli. This also appears digital to me.
Now one might could argue that some pillars are contiuums, but not all. So I ask you to scientifically support your claim that life is a continuum.
Edited by AlphaOmegakid, : added clarification

This message is a reply to:
 Message 155 by New Cat's Eye, posted 12-03-2010 10:24 AM New Cat's Eye has replied

Replies to this message:
 Message 163 by New Cat's Eye, posted 12-03-2010 2:24 PM AlphaOmegakid has replied
 Message 164 by Dr Adequate, posted 12-03-2010 3:20 PM AlphaOmegakid has replied

  
AlphaOmegakid
Member (Idle past 2906 days)
Posts: 564
From: The city of God
Joined: 06-25-2008


Message 165 of 268 (594524)
12-03-2010 7:43 PM
Reply to: Message 164 by Dr Adequate
12-03-2010 3:20 PM


Re: the actual problem only exists in your mind
Yes, but you see, by having seven pillars you allow, if not a continuum, then at least a set of fractions.
Yet another analogy that doesn't work. A dead person is about 99.99999% alive.
But we can without a clear definition of life still recognize it and recognize it's absence.
If we have seven pillars then we can conceive of something that is 5/7 alive and 2/7 not alive.
Yes, illogical, falacious scientists do argue this way. But the reality is that life is digital. It is on or off. It is alive or not alive. Therefore if you have seven qualities or processes that identify ALIVE!, you must have all seven. It's like having to turn on seven switches in order to open the logic gate for "on". Open six, and it is still off.
That's why people (me, for example) have tried to give a minimalist definition of life which rests on a single quality which is either there or not.
Yes, I read your circular definition of "evolution" in post # 10.
My aim was to make the question of abiogenesis a hard problem. If we define life as you do, it becomes easy, because non-life (6/7) can evolve into life (7/7).
Au contraire! Your circles just lead to equivocations on evolutionary terms. The seven/six pillars is all seven/six in the "on" position (my suggestion is six). No continuum. Not at all like light.

This message is a reply to:
 Message 164 by Dr Adequate, posted 12-03-2010 3:20 PM Dr Adequate has replied

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AlphaOmegakid
Member (Idle past 2906 days)
Posts: 564
From: The city of God
Joined: 06-25-2008


Message 168 of 268 (595025)
12-06-2010 10:20 AM
Reply to: Message 163 by New Cat's Eye
12-03-2010 2:24 PM


Re: the actual problem only exists in your mind
Again, that depends on the definition.
The definition has been provided. If we define yellow as this and blue as that, the green in between doesn't easily fit with either one.
By George, me thinks he's got it! That why it is called green. It is not yellow, and it is not blue. It is green.
A virus is indeed an interesting chemical combination. It is not blue, it is not yellow. It is green. It is a virus! You see, with all that arguing, you have now realized your answer. Is a virus alive? No. Is a virus dead? No. What is it? Well it is viral (green).
So the only question remains then is, is life a continuum or is it not? I say it is digital. In that case the virus is dead. You seem to think there is a continuum. In your case the virus is not alive and it is not dead. But this is only true if there is a continuum.
CS writes:
First, things like viruses and prions sit between "life" and "non-life".
Yes, I've heard this claim. I understand the claim. I am asking you to establish that "life" is a continuum. The claim relies on that premise.
Second, think about the calcium in a cow's bone and the calcium in a boulder. There's nothing different between them at the atomic scale, but one is in a living system and one is not. That the one piece of calcium is "alive" doesn't distinguish it from the other one.
You are going to have to make this more clear. I think you have a non-sequitor here. It would be similar to saying what we eat is dead, but it becomes alive. This is not an OOL issue, because life already exists.
Did you read it? The author assumes life is emmergent. That would be a continuum. You just can't arbitrarily assume that. You must establish that, and that is what I am asking you to do.
I don't know how you could call this desent. This article has no scientific value. It is merely speculation. And speculation after speculation.
I'm not aware of one source that I can point to that says that life is a continuum. Its just something I've come to understand over the years.
Bingo. it is an assumption of philosophical naturalism. If Life exists, then it must have self organized in some progressive way. It is my contention that this must be established rather than assumed.
Do you think that it isn't? Why?
I have aready said that I think the evidence is clear that life is digital. We clarify living things as dead or alive.
Now remember, I only agree with six of the seven pillars of life. I think that natural selection uses circular reasoning. However, the other six don't. Yet, the other six are distinct things/processes. A program is a distinct thing which controls the life. Compartmentalization is a distinct thing. You can have both with a RNA molecule inside a lipid bilayer or a capsid, but you don't have life. No one considers a virion alive. We of course need metabolism/energy. Which is another distinctly defined process. So each of the six pillars can be found in non-living substances/processes, but it tales all six to be alive as the things which we call life today.

This message is a reply to:
 Message 163 by New Cat's Eye, posted 12-03-2010 2:24 PM New Cat's Eye has replied

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