The most important book I read in 2013 was Jaron Lanier’s “Who Owns the Future?” Though it was published in May, I came to it late in the year. But this turned out to be fortuitous timing. With unemployment seemingly stalled out at around 7 percent in the aftermath of the Great Recession, with the leak of thousands of National Security Agency documents making news almost daily, with the continuing stories about the erosion of privacy in the digital economy, “Who Owns the Future?” puts forth a kind of universal theory that ties all these things together. It also puts forth some provocative, unconventional ideas for ensuring that the inevitable dominance of software in every corner of society will be healthy instead of harmful.