[sieongioetnio]

This will catch only the laziest and stupidest cheaters. Crafting an argument is the hard part of an essay. A student can rewrite an essay, leaving not a single word in place, but still be guilty of plagiarism because the argument is the same. This is hard to prove even with the two documents side by side. It is harder still when the source could be any of a million documents.

Of course, many cheaters are that stupid and lazy. People still just copy and paste essays they found online.

[sebzim4500]

It was already true before ChatGPT that if you are willing to rewrite an essay you can easily cheat without getting caught. Just find an essay online and rewrite it.