When Stephen Hawking and I visited the Large Hadron Collider, he hoped for an unexpected physics breakthrough. His dreams may not be impossible.
We exited the cargo lift that had taken us underground into the five-story cavern housing the ATLAS experiment at the CERN lab, the legendary European Organization for Nuclear Research near Geneva. CERN's director general, Rolf Heuer, shuffled his feet uneasily. This was 2009, and someone had filed a lawsuit in the United States, concerned that CERN's newly constructed Large Hadron Collider, the LHC, would produce black holes or another form of exotic matter that could destroy Earth.
The lawsuit was soon to be dismissed on the grounds that"speculative fear of future harm does not constitute an injury in fact sufficient to confer standing." In November of that year the LHC was successfully turned on — after an explosion at an earlier attempt — and the ATLAS and CMS detectors soon found traces of Higgs bosons in the debris of the particle collisions. But, so far, the LHC hasn't made black holes.
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