Lovely story by Kevin Kelly.
Another friend had a barely-speaking toddler take over his iPad. She could paint and handle complicated tasks on apps with ease and grace almost before she could walk. It is now sort of her iPad. One day he printed out a high resolution image on photo paper and left it on the coffee table. He noticed his toddler come up to up and try to unpinch the photo to make it larger, like you do on an iPad. She tried it a few times, without success, and looked over to him and said “broken.”
Thanks to Quentin for the link.