Earlier while writing by hand, I was wondering if anyone could build a pen holder, that could write for me? Maybe you could make some good business from them. Thanks for your time.
Yes, robotic arms or other devices could write for you.
They can even be more prolific than Shakespeare.
But probably the poetry they write is not your desideratum.
If you plant numerous electrodes in your head to monitor the spikes your neurons generate, the robotic arm may have a chance to share your thoughts thereby writing for you as you wish. However, I do not encourage you to try that. Because currently we do not have the technology at such an applicable level.
In short, the robotic arm doesn't know your heart.
So this is inevitably a heartbreaking story.