While being a student at CWU one of my favorite fields of study was Knot Theory (Double Majored in Math and Physics).
Knot Theory is the mathematical analysis of how twisted a closed loop is. When first created the field was a pure mathematical field with no real application at all. Many mathematicians that worked in this field said they simply did it for fun because it was like a brain workout. Some people who worked in the field weren't even mathmaticians but just dabbled in Knot Theory as a spare time hobby! More recently though the field has been able to be applied to the sciences in some minor cases. These include DNA tangling problems, Quantum particle entanglement, String Theory and modeling the coronal loops on the sun. This last point actually brought me into my Undergraduate research in investigating the shape and behaviors of coronal loops on the Sun's Photosphere and how they lead to solar flares. Overall though, Knot Theory is kind of a fun little field in math and rather easy to get into because you don't actually need any mathematical background to get the basics!
With this shorty history/math/science lesson out of the way this cache has little to do with Knot Theory. Instead it has to do with homonym of it. So get out there and search for it! Don't forget while you're on campus to check out all the beautiful art, architecture, and exciting discoveries being achieved!
Be careful while searching, retrieving, signing, and replacing the geocache. Being placed on a college campus there are frequently lots of people within view of this cache so there will be some stealth required.