‘But there is a difference between recognising AI use and proving its use. So I tried an experiment. … I received 122 paper submissions. Of those, the Trojan horse easily identified 33 AI-generated papers. I sent these stats to all the students and gave them the opportunity to admit to using AI before they were locked into failing the class. Another 14 outed themselves. In other words, nearly 39% of the submissions were at least partially written by AI.‘
Article archived: https://web.archive.org/web/20251125225915/https://www.huffingtonpost.co.uk/entry/set-trap-to-catch-students-cheating-ai_uk_691f20d1e4b00ed8a94f4c01
It’s not a hard rule unless you’re using a hard format like Chicago, MLA, or APA format. In the US it’s common to not use spaces, but in the UK and some parts of Europe it’s common to use spaces for em dashes and en dashes if they are being used to denote parentheticals.
Edit: I just noticed this article is hosted on HuffPost UK. If you go look at the US version of the site, it uses em dashes. In the UK it is becoming common to use en dashes in place of em dashes for parentheticals. Though even in the US version there are spaces, so it’s still not a clean comparison.