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by alexvoda 1412 days ago
On the contrary, some species have already obliterated most other life on earth namely cyanobacteria during the great oxigenation event. Possibly others have done the same. They certainly did not care at all about the destruction they caused. All of this was perfectly "natural".

That of course does not mean we should follow their example. It just means that "natural" is not a useful term.
1 comments
grog454 1412 days ago
This is still a far cry from a global nuclear winter or a deliberately redirected asteroid, or any other number of things that only humans are capable of.
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alexvoda 1412 days ago
The Great Oxigenation Event is a terraforming level event. We are not yet capable of such a large scale manipulation. Nuclear winter is at most comparable to a supervolcano or an asteroid impact.

Also, if you consider asteroids to be natural and their orbits to be natural then "nature" is already plenty capable of playing cosmic billiards. Or do you want to restrict nature to just biology?

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