For questions about string theory, which is a research framework in theoretical physics and mathematical physics that attempts to unify quantum theories and general relativity.

String theory is a research framework in theoretical physics and mathematical physics that attempts to unify quantum theories and general relativity. It is a contender for a theory of everything, a self-contained mathematical model that describes all fundamental forces and forms of matter. String theory posits that the elementary particles (e.g. electrons and quarks) within an atom are not $0$-dimensional objects, but rather $1$-dimensional oscillating lines ("strings").