Hacker News Reader

This is solid-state, not particle physics.

Indeed. Fermions are usually taught in particle physics, especially when distinguishing Weyl/Majorana/Dirac fermions.

So your claim is spin ice as a concept doesnt exist in particle physics and would not be discussed outside solid state?

I claim the article is about solid-state physics. Otherwise, any claim that doesn't appear in my comment ... ? Not my claim.