QUOTE(dkk @ Aug 29 2011, 12:26 AM)
Some people have egos that are too big, they think they are not part of nature.
Seriously, nature and natural has come to mean "good" or not man-made. Of course what is "good" and what isn't depends on who you ask. But not man-made is less controversial.
So if one day we do make the grey goo, and it builds a dyson sphere. Then that dyson sphere would be entire natural. Or not. Please start arguing.

Added on August 29, 2011, 12:28 amOh, I forget to add, homosexuality is entire natural. I'm using "natural" here as in animals in the wild (not in captivity), not under unusual stress (eg overcrowding) has been observed doing it.

by "good" you mean balance ?
i thought everything happened is random, natural happenings doesn't care if the effects really balance the ecosystem....
example like :
meteorites falling from sky, damaging the earth, cause forest fire, extinction of certain species.
ice age, volcano eruption, earthquake etc
for some reason, if we see the world in a bigger picture, i still doubt that man-made is considered unnatural....
since we are part of the nature, and what we does somehow similar to the beaver that build its dam....
imagine all the creatures started at the same starting point, and we ended up becoming the deadliest survivors by nature selection.
we became who we are by what we capable of (what nature's offering us)
on the other hand, the fall of human kind, or the destruction of earth maybe a big thing to us,
but it doesn't seem any significant even if we are totally wiped out from the earth....
Added on August 29, 2011, 4:55 amQUOTE(hako @ Aug 29 2011, 12:04 AM)
human civilization as in big huge city and buildings, cars that produce pollutants, or even nuclear bombs. Not to forget synthetic products and machines and so on.
why aren't these considered as part of nature?
whereas a simple beaver dam is consider as nature.
A beaver dam is beavers habitat made from logs.
i got another theory
nature or not, it is just a definition/classification created by human through their studies (science)
you should know that man classifies nature/creation and man-made to differentiate nature from civilization
the only thing unnatural to the earth might be those rocks we brought from the orbits (outer space)
This post has been edited by 9876789: Aug 29 2011, 04:55 AM