http://www.livescience.com/technology/destroy_earth_mp-1.html
#2 is still my prime contender
von Neumann machines ftw
Depends on what you mean by world and what you mean by end.
There's a wonderful SciFi short story about the end of the world that ends by revealing to the reader that the end of the world means to the characters the end of the exclusivity of Earth as our home. The final line, paraphrased is: "So the world ended and the universe opened up."
But a classical "end of the world" scenario I'd have to pick something very sudden. If by human means it would have to be nuclear war, the sheer military force of various governments would halt anything else.
An asteroid might do it, if it happens relatively soon, let's say within 75 years or so.
On the optomistic side the end of the world might be a technological singularity that ends the world in the sense that we no longer need it, humanity matures technologically to the point that we are freed from dependence on the Earth. Or, perhaps more realistically, a technology that accelerates transhumanism so that we're no longer traditionally human. Thus wiping us out without harming anyone.
Originally posted by inimalist
http://www.livescience.com/technology/destroy_earth_mp-1.html#2 is still my prime contender
von Neumann machines ftw
Couldn't we just make anti-VNMs?
Originally posted by Symmetric Chaos
Couldn't we just make anti-VNMs?
they would have to destroy VNMs faster than they could recreate themselves, and probably before some critical threshold of VNMs were created.
also, the anti-VNMs would require, hypothetically, resources from the Earth to create, potentially speeding up the process by which Earth is dismantled as new anti-VNMs must be created to stop the actual VNMs... and I just wrote a best selling sci-fi novel, or a really bad Dr. Who episode.
Originally posted by Symmetric Chaos
Depends on what you mean by world and what you mean by end.There's a wonderful SciFi short story about the end of the world that ends by revealing to the reader that the end of the world means to the characters the end of the exclusivity of Earth as our home. The final line, paraphrased is: "So the world ended and the universe opened up."
But a classical "end of the world" scenario I'd have to pick something very sudden. If by human means it would have to be nuclear war, the sheer military force of various governments would halt anything else.
An asteroid might do it, if it happens relatively soon, let's say within 75 years or so.
On the optomistic side the end of the world might be a technological singularity that ends the world in the sense that we no longer need it, humanity matures technologically to the point that we are freed from dependence on the Earth. Or, perhaps more realistically, a technology that accelerates transhumanism so that we're no longer traditionally human. Thus wiping us out without harming anyone.
I guess it depends if we are talking about a) the end of human civilization, b) the extinction of man, c) the end of all life on earth, or d) the destruction of the Earth itself.
I tend to think a virus outbreak is the most likely for a), and b) is, imho, impossible without also having c) or d) occur. c) could possibly be caused by nuclear war, but even then, my thoughts are that, unless wiping out all forms of exotic life were the expressed purpose of the nuclear conflict, cave dwellers, deep ocean dwellers and the like would remain. d) I don't feel humans have the technology for, with the exception of just ejecting the mass of the earth into space piece by piece.
Originally posted by Rogue Jedi
I don't think it'll happen.
it sort of has to, eventually, be it when our sun expands, or, failing that, when the universe itself exerts so much force in expanding that it rips apart the atomic bonds of all mater, or shrinks all the matter in the universe to the size of a singularity.
Human extinction is way more likely /shrug