This news article shows a young woman with a remarkable skill that she discovered when studying English. What an interesting challenge for a homeschooled student who's learning languages!
My high school French teacher could do it. She could also write in morror image...forward with the right hand, backward with the left...at the same time.
President James Garfield could write Greek with one hand and Latin with the other at the same time. I presume he could also write in English.
Okay this is nice to see. I have been able to do this most of my life and actually had an attempted teaching of it for my kids. Not everyone can do it, so its not hereditary but has something to do with being ambidextrous in some way because dd could do it, more clearly than the boys, but one of them was able to do sloppy version haha. but then my dd writes better than they do. I also can write from the inside out at the same time frontwards and back wards but then I was also diagnosed as having "Mirror Vision" as a child lol for what thats worth.