but if that’s what you want to spend money on, you don’t also need to dig a tunnel.

maybe we should wait until they have better reasons for why a larger collider might find something new

prediction is just a guess

based on facts, not on shiny advertising

“is obviously addressed to politicians and not fellow physicists and uses the same arguments as those used to promote the L.H.C. in the ’90s.”

the origin of the universe.

Yes, it is possible that a new collider finds a particle that makes up dark matter, but there is no particular reason to think it will.

15 orders of magnitude above the currently accessible energies.

merely noise

In case you were wondering, yes, that’s exactly why I left the field.

Those predictions were wrong — that much is now clear.

Before the L.H.C. started operation, particle physicists had more exciting predictions than that. They thought that other new particles would also appear near the energy at which the Higgs boson could be produced. They also thought that the L.H.C. would see evidence for new dimensions of space. They further hoped that this mammoth collider would deliver clues about the nature of dark matter (which astrophysicists think constitutes 85 percent of the matter in the universe) or about a unified force.

let’s be honest: It’s disappointing.

knowledge about the structure of the proton, and they’ve seen new (albeit unstable) composite particles

only discovery made at the L.H.C.

In 2012, experiments at the L.H.C. confirmed the discovery of the Higgs boson — a prediction that dates back to the 1960s

$10 billion is a hefty price tag.

I still believe that slamming particles into one another is the most promising route to understanding what matter is made of and how it holds together

I used to be a particle physicist. For my Ph.D. thesis

$10 billion.

even larger collider.

second experimental run completed

With a $5 billion price tag and a $1 billion annual operation cost, the L.H.C. is the most expensive instrument ever built

protons collide at almost the speed of light

16-mile-long underground ring

world’s largest

failed to deliver the exciting discoveries that scientists promised.

Setting in motion this MetroHealth expansion was the mid-2017 closure of the maternity ward at the Cleveland Clinic's Medina Hospital, leaving Medina County without its own center for labor and delivery services

word

Making MetroHealth expansion legally possible via an unpublicized add-on to an unrelated bill, without public debate, discussion or hearings, is poor policy, plain and simple.

in theory

to help Medina County get maternity services from MetroHealth.