Greta wrote:We aren't parasites, we are the biosphere reshaping itself. It is clearly undergoing undergoing metamorphosis. Just as tadpoles lose structures, whose material is used to make new ones, so does the biosphere. It's done it plenty of times before.
Dubious wrote:Yes we are parasites even according to our own definitions. Here is one such:
A parasite is an organism that lives in another organism, called the host, and often harms it. It is dependent on its host for survival - it has to be in the host to live, grow and multiply. A parasite cannot live independently. Although a parasite rarely kills the host, in some cases it can happen. The parasite benefits at the expense of the host - the parasite uses the host to gain strength, and the host loses some strength as a result. Parasites, unlike predators, are usually much smaller than their host. They reproduce at a faster rate than the host.
In this interpretation of "parasite" you are treating the biosphere as the host organism and humans as parasites. Yet what organisms grow their own parasites? We aren't aliens but part of a lineage of great apes and primitive hominids.
So, by your definition humanity is a cancer - a part of an organism that does not cooperate by limiting its growth like normal cells. However, we again run into the issue of order. Cancers are disordered entities but humans are the opposite.
Dubious wrote:Anything here not familiar in our relations to planet earth? The sentence 'They reproduce at a faster rate than the host' is also true as the demand for resources is exceeding supply as our numbers increase. The planet, as everyone knows, doesn't need us. We are thoroughly expendable as a species.
So you believe the biosphere would thrive without us? It could continue being beautiful without due appreciation, and continue being savage without abatement, and then the whole lot (maybe barring some deep living microbes) dies in a billion years. If an asteroid hits, maybe much sooner.
I don't find that vision as inspiring as the possibility of enhanced humans rising from the wreckage of the Earth before the Sun wrecks it and bringing life to other moons and planets.
Dubious wrote:We are also most definitely not the biosphere reshaping itself! Definition of biosphere:
Part of the Earth's surface and atmosphere that contains the entire terrestrial ecosystem, and extends from ocean depths to about six kilometers (3.7 miles) above sea level. Not precisely demarkable, it contains all living organisms and what supports them soil, subsurface water, bodies of water, air and includes hydrosphere and lithosphere. Also called ecosphere.
If we are not part of the biosphere, what are we part of??
Again this is negativity bias blinding us to the obvious. A parasite reduces and kills off larger systems, reducing them to retrograde, simpler ones.
Dubious wrote:I would need to be educated in how we haven't already done this.
Once again you are painting humans as super special aliens screwing everything up. You forget the progress side - the fact that we have billions of intelligent beings capable of deep morality, creativity, imagination and kindness (even if not all do it). The other animals and plants are paying the price for our existence, yes, just as any prey animals unwillingly pay with their lives for the sake of predators. That's why I only eat meat occasionally, to lighten my footprint.
So nope, humans are born of the Earth. We are pieces of the Earth, just like every other critter. We are dominant because we are empowered and any other empowered species would do the same.
Dubious wrote:Take the Amazon rain forest and others like it, etc, in which the vast eroded tracts are doomed to become deserts due to the type of soil which nourishes it. It took overs a billion years to create. A source of pharmaceuticals beyond anything we have in our research labs not to speak of some of the most exotic editions of life ever encountered eventually reduced to sand.
The Amazon takes billions of years to make and we must save it. Humans take billions of years to make and you want us all dead? What for? So animals can bumble along just like "the good old days"- until an asteroid or the Sun gets them?
The "good old days" ... when humans lived to their early twenties, had high infant mortality, frequently died violently and spent their short painful lives riddled with parasites, exposed to the elements and living in constant fear of predators. Is that your idea of an ideal world? If you want the clock wound back, at what point in history would you like use to back to? If we regressed to a point that you wanted, would you want us not to progress any more?
Metamorphosis involves replacing simpler structures with more complex ones better adapted for the new life.
Dubious wrote:What new life would that be?
Um, humans. Last time I looked we were alive. Don't we count? If not, why?
Dubious wrote:Metamorphosis may be nature's way but in what way have we accomplished replacing simpler structures with more complex ones...? Our version of Metamorphosis seems more like turning Earth into Venus, a considerably less complex structure.
...but maybe I misunderstood!
Earth is turning into Venus in a billion years' time anyway. Why always focus on the destruction and not the construction? I wouldn't believe you if you claimed not to see value in the arts, morality, charity and our bodies of knowledge. You know we have done all these good things and no doubt appreciate them on a personal level - yet you focus on the negative, as though you think the price for those good things is too high.
I suppose the price for a caterpillar is too high as it relinquishes so much potential longevity to become a butterfly. But what are butterflies? A reproductive cycle. I think of humans as the biosphere's reproductive organs.
Our radio waves, light and space junk advertises our presence to our galactic neighbourhood and we are consistently sending biota into space, often despite our best efforts at keeping things sterile. We churn up masses of dust, propelling countless microbes into the air.
If the biosphere is going to persist after the Sun's expansion then humanity may well play a major role, at least greatly improving the chances of Earth-induced panspermia elsewhere. Life has a drive to persist and explores all possible options like water explores the cracks in pavement (hardy surprising since life is largely water).