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# String Theory Simplified A bunch of BS? Or Answers Why Do We Exist?

String Theory Simplified A bunch of BS? Or Answers Why Do We Exist?

What is string theory? When string theory is simplified – it can answer the question « Why do we exist? » First you must accept that there are two worlds we live in – the world of the large, the world we can see, which is familiar, calm, and predictable. And there is the world of the small, the world we can’t see, the quantum world, which is bizarre, chaotic, and unpredictable.

The large is described by Einstein’s equations of relativity, and the small is described by the equations of quantum mechanics. These two parts of nature are incompatible when it comes to the equations of physics.

The small is ruled by 3 forces – the strong nuclear force, the weak force, and electromagnetism. The large is ruled by gravity. Gravity is not like the other forces, and nobody has been able to figure out how it is related to the other forces. String theory attempts to do just that. And if it can, it would unite the small and large worlds of our universe into one set of equations, and would explain all particles and forces in the universe. This could be the theory of everything.

String theory dispenses with the idea that the tiniest particles in nature are points, rather, string theory hypothesizes that at the smallest scales, nature is made of tiny vibrating bits of energy in the shape of filaments or strings. According to string theory all the elementary particles in the standard model are not points, but rather vibrating strings. Different vibrations of a string create the different particles, like different vibrations of piano strings create different notes.

So according to ST, for example, one vibration may result in an electron, another may result in an Up quark. In fact the unique vibrations of these strings determine the mass, electric charge, and spin of all elementary particles. And it so happens that in one of its vibrations, a particle that has the properties of a graviton emerges from its mathematics. The graviton is a theoretical quantum particle that would carry the force of gravity. And this is the key to uniting the two worlds of the small quantum world and the large celestial world.Thus String theory can model quantum gravity, similar to the way loop quantum gravity also models quantum gravity.