what a pointless statement, you need to provide a definition of "think" if you are expecting a good faith response
No, think is one of those "I know it when I see it things" like pornography. There are a bunch of edge cases and places where we aren't sure and we don't agree. However, there are straight forward simple cases where everyone who's engaging in good faith (another of these) can clearly see that it's pornography even if they aren't properly able to define the word itself. Since nobody has come up with a good definition of thinking so far, demanding one as an entry to the debate is no good.
When a user cuts and pastes from an LLM straight into an answer we know that's not "thinking".
When a clever lecturer comes up with a question which LLMs get wrong 99% of the time, which most people will cut and paste into the answer but which the "thinking" student will spot and will be able, after a bunch of work, to correct then we really see that both the lecturer and the student were "thinking".
Personally I'd start by assuming that the Chinese university teachers are far ahead on this and that they know exactly how to force LLM users to think. The current arrogance of many in the West who think that China isn't up to their standard suggests to me that either we're seeing the effect of Chinese/Russian social network manipulation or the West is setting itself up for a fall.