Everything you do changes your brain activity.

This isn’t about using ChatGPT broadly, but specifically about the difference between writing an essay with the help of an LLM versus doing it without. And in this case, I think it all comes down to how you use it. If you just have it write the essay for you, then of course it won’t stimulate your brain to the same extent - that’s like hiring someone to go to the gym for you.

Personally, the way I use it to help with my writing is by doing all the writing myself first. Only after that do I let it check for grammatical errors and help improve the clarity and flow by making minor structural adjustments - while keeping the tone and message of my original draft intact.

For me, the purpose of writing is to convert abstract thoughts into language and pass that information along, hoping the reader understands it well enough that it forms the same idea in their mind. If ChatGPT can help untangle my word salad and make that process more effective, I welcome it.