> aha! I told you they are useless

You said this. Neither Apple nor the author did.

The focus was specifically on LLM's reasoning capabilities not whether they are entirely useless or not.

This is relevant because countless startups and investment is predicated on LLM's current capabilities being able to be improved and built on top of. If it is a technological dead-end then we could be in for another long lull in progress. And companies like OpenAI should have their valuations massively cut.

It also constrains the level of investment Apple would need to be comparable to top tier LLM companies.