May I interest you in Marco Reps CERN tour video from two months ago: https://www.youtube.com/watch?v=Yibef6nLCv8
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Can we use these magnets for smaller stellarators?
They'd be worse than HTS magnets.
The title omits the “How” at the beginning.
It’s a Hacker News quirk. I forgot who it was, but one of the people who writes the heuristics for Hacker News submissions decided that, in order to reduce clickbait titles, submissions that start with “How …?” must be rewritten to remove the question that may or may not be answered in the article itself. Sometimes it helps, but most of the time it back fires, see these:
• https://news.ycombinator.com/item?id=4102013
• https://news.ycombinator.com/item?id=21617016
The filtering only happens at submission time.
The submitter can edit the title to put “How” or other filtered expressions back into it.
Expecting submitters to know how an undocumented feature works and how to work around it seems uncharitable.