OK, so, how do I explain this?

As a "artist" a good handful of the images in my head aren't what's put on paper. I feel like I can see every line, every shade, the slashes of color.
Its annoying when what's sketched upon the once-blank page isn't what you imagined,  but its a excuse to keep going.

Listening to the story of The Evil Within and Prey-(which both deal with the brain in some way)-I got this thought.

What if there was a device that you could hook up to your brain and the machine would draw what was in your head? Make the angles perfect, the shadows just right, the elegance and atmosphere captured beautifully.
And, I guess more importantly, would you use it?