This makes it possible for the histories approach to answer two questions raised by J. S. Bell (1990) as objections to using information theory to address foundational issues in quantum mechanics: “Whose information? Information about what?” The answers in reverse order: information is always about quantum properties or, more generally, properties at different times, thus histories. And it is possessed by someone who, like Alice in subsection 8.1, can build a reliable piece of apparatus and interpret the (macroscopic) outcome by applying consistent quantum principles.