I just finished marking student reports. There are some sections clearly written without AI, some that clearly are written by AI, and then some sections where the ideas are correct, the grammar is perfect, and it is on topic, but it doesn’t seem like it is written in the student’s voice. Could be AI, could be a friend editing, could be plagiarism, could be written long before or after the surrounding paragraphs. It is not always obvious, and the edge cases are the problem.

Perfect grammar and slightly unusual words in a paragraph. Could be a weird formulation from a student’s mind, could be AI. No way to really know.

A few years before WWI, Russia had a disastrous war against the Japanese, whom they had considered an inferior, small opponent that would be defeated quickly.

Time is a flat circle.