Since there is trend for larger and more powerful atom smasher's or supercolliders being built all over the world. Is there a chance that a stranglet could be formed, in which case it would sink to the center of the Earth and create a black hole.
http://www.pacpubserver.com/news/new...blackhole.html
One reason I am wondering if this is a possibility, considering Fermi's question about advanced civilizations, or there lack of any evidence for class 1 civilizations. Never mind any class 2 or 3.
The reason being that all past class 1 advanced civilizations are now black holes from doing particle research in accellators, and under-estimating the ease ofcreating stranglets which destroyed their home planet and creating a mini black hole.
We are estimated to be about 500 years from being a class 1 civilization. If stranglets are not controllable once started, and are easily created by a large enough particle accellator, then we are doomed to be destroyed in the near future by our own scientific advancement.