According to theoretical physicist Joseph Polchinsky, a "theory of everything" will be created on the basis of string theory in 116 years. This is exactly how much time has passed since the introduction of the Planck length, equal to 10-33 cm, on the basis of which string theory operates. And that is exactly how long it will take to create a "theory of everything."
Calculations of the theoretical physicist from the University of California at Santa Barbara Joseph Polchinsky are given on the website of the largest Internet archive of scientific papers arXiv.org. The scientist compared the stages and rates of development of physics during the XX and early XXI centuries. He began his analysis in 1899, when the German physicist Max Planck introduced the length equal to 10-33 cm. On the basis of this length, string theory operates, which, in the opinion of the overwhelming majority of physicists and mathematicians, is the only candidate for the role of the "theory of everything." As long as 10-33 cm, is so small that it is inaccessible to observation in the experiment.
The maximum length scale at which humanity can currently experiment is 10-17 see Similar experiments are being carried out at the Large Hadron Collider. This point on the logarithmic scale corresponds to the midpoint of the distance. Accordingly, the same amount of time remained before the creation of the “theory of everything” as has elapsed since the introduction of the Planck length into science.
Until now, it has not been possible to combine the Standard Model (SM) of particle physics, which describes the three fundamental interactions - electromagnetic, weak and strong - and the general theory of relativity (GR), which describes the gravitational interaction. String theory, if successful, will allow a uniform description of all four interactions and unite SM and general relativity.