- #1
curiouschris
- 147
- 0
I have been wondering about life. Not the origins of life or the philosophical implications of life. just what is life. what's the difference between dead and alive.
I know no one has the answer, but it would seem to me that a place to start would be to study the simplest form of life we know, apparently that is a virus. I have even read some consider it not to be alive. but I know that's crackpot stuff because in the same paragraph they said a particular form of virus can only 'survive' outside a host for x hours. Thus it must require some form of nourishment to replace depleted resources and without those resources it 'dies' it also is self duplicating which I believe is one of the most basic requirements of life.
Anyway that diversion aside. The question is what physical difference is there between a living virus and a dead one? is it measurable?
Is it a missing molecule, a lack of electrical activity, or lack of some other chemical activity?
If we replaced it could we re-animate the virus. If not why not, does it mean something else is missing?
This to me is a logical place of investigation for any scientist interested in the origins of life, it also seems to me to be more in the realms of physics than medical science. Is it some sort of quantum effect?
It would appear to me if its some sort of physical effect, in other words the loss of some attribute, then reanimation is entirely probable. When a car runs out of petrol we fill it up again. If a piston breaks replacing it gets it working again. Nothing in a car is so important it is irreplaceable (though it might be too costly) that it can't be replaced to fix it.
But for life my intuition says otherwise, something goes after death that can't be replaced no matter what.
Please read that last sentence in reference to a single cell life form, not human or other higher (multi cell) life form.
To put it in terms a physicist may understand. When death occurs there is a loss of information that cannot be reclaimed. Like the death of a black hole ( yes I know Stephen Hawking recanted and lost the bet).
The last paragraph was to pique physicists interest because apparently you cannot lose information, eh I don't understand why but you can't. Therefore permanent death is a physical impossibility, which is the way I read it.
So to re ask the original question, has anyone been able to catalogue the difference between a live virus and a dead one?
CC
I know no one has the answer, but it would seem to me that a place to start would be to study the simplest form of life we know, apparently that is a virus. I have even read some consider it not to be alive. but I know that's crackpot stuff because in the same paragraph they said a particular form of virus can only 'survive' outside a host for x hours. Thus it must require some form of nourishment to replace depleted resources and without those resources it 'dies' it also is self duplicating which I believe is one of the most basic requirements of life.
Anyway that diversion aside. The question is what physical difference is there between a living virus and a dead one? is it measurable?
Is it a missing molecule, a lack of electrical activity, or lack of some other chemical activity?
If we replaced it could we re-animate the virus. If not why not, does it mean something else is missing?
This to me is a logical place of investigation for any scientist interested in the origins of life, it also seems to me to be more in the realms of physics than medical science. Is it some sort of quantum effect?
It would appear to me if its some sort of physical effect, in other words the loss of some attribute, then reanimation is entirely probable. When a car runs out of petrol we fill it up again. If a piston breaks replacing it gets it working again. Nothing in a car is so important it is irreplaceable (though it might be too costly) that it can't be replaced to fix it.
But for life my intuition says otherwise, something goes after death that can't be replaced no matter what.
Please read that last sentence in reference to a single cell life form, not human or other higher (multi cell) life form.
To put it in terms a physicist may understand. When death occurs there is a loss of information that cannot be reclaimed. Like the death of a black hole ( yes I know Stephen Hawking recanted and lost the bet).
The last paragraph was to pique physicists interest because apparently you cannot lose information, eh I don't understand why but you can't. Therefore permanent death is a physical impossibility, which is the way I read it.
So to re ask the original question, has anyone been able to catalogue the difference between a live virus and a dead one?
CC