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Residents of Mountain View, CA no longer have to worry about overdue library books. BookBot, the library's electric, autonomous assistant makes home calls to retrieve library patrons' books and returns them to the Mountain View branch. https://www.mercurynews.com/2019/03/09/meet-bookbot-mountain-view-librarys-newest-robot-helper/
@estherschindler Relevant: https://www.youtube.com/watch?v=Hzlt7IbTp6M