June 21st, 2008
The Large Hadron Collider (LHC) is going on on-line and will produce the most energetic man-made collisions ever created. There have been concerns that this will produce various doomsday scenarios, but as Dennis Overbye writes in the New York Times citing a recent safety report, the particle accelerator isn’t going to create a runaway black hole that could eat the Earth.
The proof is pretty trivial to high-energy particle physicists.
Cosmic rays from space already hit our atmosphere with far greater energies than the LHC can produce, and we study these air shower events with facilities like the Pierre Auger Cosmic Ray Observatory. If collisions like the ones that will take place in the LHC produced black holes that had planet-eating capabilities, all the planets and stars would have been destroyed long ago.
Miss Alabama in the 1994 Miss USA contest responded to the question “If you could live forever, would you and why?” with ‘I would not live forever, because we should not live forever, because if we were supposed to live forever, then we would live forever, but we cannot live forever, which is why I would not live forever.’
My version for the LHC threat: Collisions made by the LHC will not destroy us, because we should not be destroyed, because if we were supposed to be destroyed, we would have already been destroyed, but we haven’t been destroyed, which is why the collisions won’t destroy us.
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