@jgweed,
Lily;99788 wrote:Viruses? I'm guessing that you're meaning computer viruses. Otherwise you must have skipped an awful lot of science classes to not know that viruses live.
Now this is interesting. I first was surprised to read that you consider a virus a lifeform because when i went to school i remember precisely that viruses were very close to be such, however did not make the race.
Regarding you call yourself a scientist i did a little research and guess what i found:
There seems to be a significant difference of the understanding of life between the german and the english speech area.
The reason why i find this paricularly interesting is because we certainly agree that the use of the word life is more than just a question of language.
However you can easily find out yourself when you look up the word 'Life' on Wiki that life on the english page clearly makes a distinction between cellular and noncellular life.
On the german page when you look up 'Lebewesen' (life forms) you will read about viruses that they can not be considered life forms because:
First of all they do not have a metabolism (they are not cells), meaning they are ready made chemical products that remain unchanged for the rest of their 'life'.
Second: They do not reproduce independently. Reproduction completely depends on the hosts providing the cells that are actually alive.
This independence is an aspect that might be interesting regarding the following:
jgweed;99720 wrote:
Again, cities and the internet may be said to "develop" or to "grow" but they nevertheless remain physical apparatus---highly complex, to be sure---requiring construction by human hands involved in active projects and plans.
Even though all kinds of life that we know of share the property of not being made by human hands this is not a criteria that counts, at least up until now.
You will not find it in any biology book.
In fact "artificial life" is a topic about humans doing precisely this: They are about to create life in maybe decades maybe centuries, regardless how long it takes we should be prepared that man will create life forms that have to be considered alive.
---------- Post added 10-28-2009 at 11:18 PM ----------
KaseiJin;99925 wrote:As with some other matters which sometimes get ignored for the sake of creative, imaginative thinking and philosophizing, there are quite set definitions/descriptions of the terms related to being alive, and having life. No, non-living things like water molecules, asphalt, sedimentary or volcanic rock, lumber, glass, and steel, do not have life processes, and are thus exactly that, non-life forms. In this exact definition bound setting, the answer to the question is negative.
I am certainly an enemy of this reappearing picture of the internet growing a secret consciousness that lurks around somewhere in the cables using computers as brain cells.
So i should probably leave things as they are.
However since we are interested in finding truth there is something to be said about things being a bit more complicated.
At school we all have learned about the list of properties that something living must have.
The model of autopoiesis developed by Varela and Maturana in the 70's however changed this view in its basics. Autopoiesis can be seen as an alternative model to the list of properties especially because it gives a much preciser and clearer picturer of life, providing explanations as oppose to just being descriptive.
Having found this principle of life it didn't take much time until someone found out that there are systems functioning based on principles that are very similar.
Autopoiesis of biological life is based on a chemical and physical cycle, autopoiesis itself however can be described as a merely logical one.
So it didn't take much time for Niklas Luhmann who can be considered a highly respected scientist of systems theory to develop his model of society based on the principle of autopoiesis. In other words he explains how modern society in a way functions in the same way as a living organism.
Of course this does not include any intention to claim society was something being alive in a biological sense.
What makes his model interesting however is that it gives you an idea of how and why society is something selfmaintaining and selfreconstructing and in some other points behaves like an organism.
The interesting thing about the internet now is that the principle of selfmaintaining dissipative structures (which is autopoiesis) can be seen all over the place.
To make it clearer:
For example we have no idea how many dead logical bodies there are on the net. Imagine you create an account at some kind of service like a social network. You look at it, don't like it, forget it. Your avatar however remains. It continues receiving email, advertise, etc.
It still interacts passively.
But not only your avatar interacts. Providers exchange information about your avatar. If for example you have an account on one of the world's biggest social networks which i don't want to advertise here, you have no idea that even a long time before you return to your favourite global online bookstore this bookstore will have perceived information about your interests FROM that social network.
The exchange of information takes place without any human activity.
This means the information exchange has reached a human-independend stage.
Now you certainly heard about RSS-feeds. Nowadays we have no idea how many online services exist that collect RSS feed information. The amount of informations collected by feeds and actually never read by any human mind might already be bigger than the information that is actually taken note of. We have RSS-feeds reading RSS-feeds.
We have an increasing number of information being passed from one system to another that exists without any human ever taking note of.
This part of the existing information has something like an intrinsic reason: It exists for itself. Like life.
These information cycles build something like the first informational cells. Wherever informations cycles connect to other cycles they will maintain each other: Just like your avatar sending its latest information about your (not even existing) activity will prevent your adress from being deleted on the other system and causes an email as response.
Take a few feedback loops like that and you get the logical equivalent to a stabile chemical cycle.
This is how little informational bubbles are created having there own life.
Very primitive life, however based on the same principles.