A Different Theory

Game theory: study of fun.
Chaos theory: study of yin.
Order theory: study of yang.
Model theory: study of fashion.
Spectral theory: study of ghosts.
Catastrophe theory: study of 2020.
Queue theory: study of Home Affairs.
Quantum theory: study of small things.
Graph theory: study of board meetings.
Category theory: study of product filters.
Approximation theory: study of gambling.
Probability theory: study of pro gambling.
Elimination theory: study of assassination.
Information theory: study of Google search.
Type theory: study of teenage relationships.
Network theory: study of adult relationships.
Group theory: study of similar stuff together.
Set theory: study of different stuff together.
Dimension theory: study of science fiction.
Distribution theory: study of communism.
Ring theory: study of getting engaged.
Knot theory: study of getting married.
Number theory: study of calculators.
Module theory: study of university.
Coding theory: study of hackers.
Proof theory: study of debating.
String theory: study of guitars.
Field theory: study of farming.