The point has always been the act of writing itself. What you write about is almost irrelevant; it’s that you spent the time writing, that you had ideas in your head, and that you squeezed them onto the page.

Sure. And my point is that the assignment is poorly conceived if an LLM's output can appear to "have ideas" that satisfy the prompt. Last I checked, they don't do a good job of modeling a specific, non-notable person within particular constraints, and then all the relevant life experiences of that person. An LLM essay should be human-detectable for the same reasons that one from an essay mill would be.

Is that not pointless now? The point of writing was previously to communicate our thoughts and ideas to other people. Now and going forward that is unnecessary. The most efficient and effective way for us to communicate our thoughts and ideas is to have an agent organize and write them down for us.