But this idea that knowledge can be separated from facts - that we can know without knowing - really needs to be challenged before it gains any further currency. It’s wonderful beyond words that we humans can look things up, whether in books or from the web, but that doesn’t mean that the contents of our memory doesn’t matter. Understanding comes from context, and context comes from knowing stuff. Facts become most meaningful when, thanks to the miracle of memory, we weave them together in our minds into something much greater: personal knowledge and, if we’re lucky, wisdom.