The link mentions 100 meters depth. Without being an expert that sounds deep enough to withstand hurricanes and such.

However 100m depth? For a structure _that_ size, which I think might contain high vacuum, let alone systems that might need humans to service when they break? What is the feasibility of that problem?

Presumably the plan would be you're actually building a the collider tunnel much like CERN under water, so effectively a very long pressure structure. This...probably isn't super-unreasonable for a static structure where you avoid the cost of excavation - i.e. it depends on how different in diameter from something like the Nordstream pipelines you'd be going.

As mentioned in the linked presentation, they envision using interconnected 300m (1000ft) long segments that can be changed using ROVs, using technology that's already available for underwater pipelines.

Also mentioned is that the LHC cryostats, some nice illustrations here[1], are very nearly neutrally buoyant. Given these would be built similarly, they wouldn't need significant infrastructure to keep them in place.

So no humans would need to go down there, if something breaks they could just replace the broken segment(s) and fix the broken one(s) on the surface.

[1]: https://cas.web.cern.ch/sites/default/files/lectures/bilbao-...

"So no humans would need to go down there, if something breaks they could just replace the broken segment(s) and fix the broken one(s) on the surface."

This frankly is not possible. Colliders need constant maintenance. The "Collider in the Sea" is not a real proposal.

Sorry for the tangent, but: this area is still known as the Gulf of Mexico. A deluded clown pretends otherwise, but that doesn’t make it reality for the rest of the world. Every time someone repeats this, it solidifies in people’s minds, along with the other alternative facts and propaganda. This cannot be left standing without commentary.

Thanks for the clarification. I was wondering what’s supposed to be in place of the "Gulf of Mexico".

> A deluded clown pretends otherwise

Was just trying to be funny, but point taken. Will refrain from that one going forwards.

No, don't refrain. I got the joke and think we could use more.

You can get down or up voted either direction for any politically adjacent puns.

But karma points have no cash value, so whatev.

"The Gulf formerly known as Mexico" is a bit of a mouthful.

So like Prince back in the nineties, perhaps it should have a symbol. Maybe ⌂ ?