The article is about a much smaller accelerator.

> A muon collider could be much smaller and cheaper than a functionally equivalent proton collider, advocates say. It could fit on the 2750-hectare campus of the United States’s dedicated particle physics lab, Fermi National Accelerator Laboratory (Fermilab), enabling the U.S. to reclaim the lead in the continuing competition for the highest energy collider. Most important, younger physicists say, it might be built sooner than a more conventional competitor, perhaps in as few as 25 years. “If you want you can add 10 years to that, that’s still a lot better than when I’m dead,” Holmes says.