but these events ice ages, supernova etc are part of nature, even though they are incredibly destructive (only from our human perspective) they are still harmonious ( i mean harmonious as it is part of nature and makes sense). For example the stuff that man does for example creating nuclear waste and elements that nature could not create in that environment, also the creation of toxic dumps with all sorts of different wastes like plastics metals and chemicals all mixed together no natural process can create. I think this is what differentiates man from everything else, nature can clean up after itself but it cannot clean up after mankind. For example nature may create a toxic substance like oil that may leak out in that location but no natural or animal process will dig that oil out of sea and transport it thousands of miles and an oil spill causes it to pollute the sea where there was no oil in the first place.
Mars looks pretty dead... I don't see how can that be in harmony with anything. It has the peace of the grave.
There are many 'natural' events that could lead to the end of all life on Earth. I see no harmony in that.
We may have the capacity for great destruction, but let us hope, also the capacity to hold back from the brink...
Another idea suppose man existed to current levels of technology and was wiped out by some catastrophic event. Then millions of years later some new intelligent animal like man came along and started looking for his origins or what existed before like we do today with the dinosaurs , how would he explain all the debris left behind by man that is different to everything else in nature. For example how would a man from 1000 years ago cope with digging up something like a car created by us. He would hardly think it was made by some prehistoric animal (prehistoric from his perspective). It would not make sense to him and it would not be "natural"
In our past, we regularly made the opposite mistake.
Ancient civilizations thought that the stars were gods rather than a part of nature. We now know that they are part of nature.
They thought that the bones of dinosaurs were the bones of the giants of the myths and legends.
In Ireland we have the "Giants Causeway", formed by a natural volcanic process.
So we as a people have a strange sense of what is 'natural' that does not always tally with reality.
Peasants in 18th century France put an astronomer on trial for unnatural witchcraft... though they were as unnatural as he!