Is it real?

Knowledge, like truth, is relative to understanding. Our folk view of knowledge as being absolute comes from the same source as our folk view that truth is absolute, which is the folk theory that there is only one way to understand a situation. When that folk theory fails, and we have multiple ways of understanding, or “framing,” a situation, then knowledge, like truth, becomes relative to that understanding. Likewise, when our understanding is stable and secure, knowledge based on that understanding is stable and secure.

Is such knowledge "real knowledge”? Well, it’s as real as our knowledge ever gets—real enough for all but the most seasoned skeptics.—George Lakoff, Women, Fire, and Dangerous Things, 300