The Philosopher in the ValleyIn the age of big data, no company embodies its promise and its perils more than Palantir. This software firm sells some of the most powerful and dangerous technology in the world, ingesting huge quantities of data and spotting patterns, trends, and connections that would likely elude most people. Apart from Facebook, youd be hard pressed to find another tech company thats making as big of a splash or fraught with more potential pitfalls. Founded in