Who created the many bang theory?

Answer 1

"Who" depends on your intent for the subject, "many bang theory." Since there is not a named theory known as the "many bang theory," the question provide for multiple probabilities. There are two obvious considerations for multiple Big Bangs: i.e. the Oscillating Universe Theory and the Multiverse hypothesis. While the Oscillating Universe Theory provides for more of a linear view of the possibility for multiple universes, the Multiverse hypothesis provides for more of a parallel view of the possibilities for multiple universe.

The oscillatory universe theory is a hypothesis credited to Richard Tolman who saw it as a possible outcome of the Big Bang. When it is stated as credited, it should be known that the oscillating universe theory was briefly considered by Albert Einstein in 1930 in which he theorized a universe following an eternal series of oscillations, each beginning with a Big Bang and ending with a Big Crunch. However, the work by Richard C. Tolman in 1934 showed that there was a problem with Einstein's calculations; i.e. according to the Second Law of Thermodynamics, entropy can only increase for this linear view of multiple universes. This concept therefore implied that successive cycles grow longer and larger, and it became the first successfully feasible description for an oscillatory universe.

The multiverse is the hypothetical set of multiple possible universes. The term was coined in 1895 by the American philosopher and psychologist William James. The concept promoted that these various universes within the multiverse, sometimes called parallel universes, would together comprise everything that exists and can exist: the entirety of space, time, matter, and energy as well as the physical laws and constants that describe them. Thus the first conciliation that our defined "universe at large" was not just including our traditional fourth dimensional existence (i.e. the reality that we call our universe), but rather a multiple consideration for a universal medium with many such realities: e.g."alternative universes", "quantum universes", "interpenetrating dimensions", "parallel dimensions", "parallel worlds", "alternative realities", "alternative timelines", and "dimensional planes," among others.