Professional testing = Applied epistemology

I am getting some acquaintance with the trade of professional testing; it is just amazing how far were my previous testing notions from the state of the art in such a profession.

Again, pillars from that trade like Glenford J. Myers and Cem Kaner help me to open my eyes.

For instance, in Lessons Learned in Software Testing by Cem Kaner, James Bach, Bret Pettichord, they said testing is applied epistemology; that is a very intense, deep in meaning and very compelling statement.