String Theory
This is a simplified generalization of string theorem. This idea has been around for quite a long time. The initial calculation that may have explained strong force was reported to have been discovered in 1968. In the years since, string theory evolved into superstring theory, and a number of different strands of these theories emerged, each with their own paradoxes and anomalies, which rendered them individually incomplete. In 1995, a new theory took the leading consistent versions of superstring theorem, and united them all. Basically, it shows that they are all viewing the same thing but from different perspectives. M theory reconciled them all into a brand new unifying theory of the four forces of nature, gravity, electromagnetism, strong nuclear, and weak nuclear. M theory also added a couple of new ideas to the mix, however the anomalies and paradoxes for the moment seem to have been resolved. M theory adds an 11 th dimension, which is not a big leap considering science cannot explain the extra 6 super string theory predicts anyway. It also concludes that the strings were not strings, but membranes, which can stretch to enormous sizes, even bigger than the universe in fact.
It is said that the scientists don’t know what the M in m theory stands for, but I will assume it stands for membrane, which is one of the main new additions to superstring theory.