While we have been able to have messages, music, books, films, etc. delivered to us without human hands involved for a few years now, this technology may allow us to have physical objects manufactured to spec in our homes without human hands involved. (Imagine having a pair of jeans manufactured in your home in a few hours that match your exact measurements.)
The impact this will have on manufacturing, commerce, and the economy in general is almost unfathomable. Fasten your seat belts.