A quick overview of String Theory
String theory is an active research framework in particle physics that attempts to reconcile quantum mechanics and general relativity. It is a contender for a theory of everything (TOE), a self-contained mathematical model that describes all fundamental forces and forms of matter. String theory posits that the elementary particles (i.e., electrons and quarks) within an atom are not 0-dimensional objects, but rather 1-dimensional oscillating lines ("strings").
To the right, I have placed a quick video explaining why String Theory has come into existence and what scientists hope it will accomplish.
Why should you care about String Theory? Because, if this is proven true it will essentially mean it's what makes up every existing thing that we know.. Including yourself!