Just read that first link: "Another reason I am not excited about the current plans for a larger collider is that we might get more bang for the buck if we wai

Just read that first link: "Another reason I am not excited about the current plans for a larger collider is that we might get more bang for the buck if we waited for better technologies. There’s the plasma wakefield acceleration, eg, that is in a test-period now and that may become a more efficient route to progress. Also, maybe high temperature superconductors will reach a level where they become usable for the magnets. " The new accelerator won't have superconducting magnets and doesn't have a particular particle to look for like the LHC did with the Higgs.