Striking evidence that string theory could be the sole viable “theory of everything” has emerged in a new theoretical study of particle scattering that was done by a trio of physicists in the US. By unifying all fundamental forces of nature, including gravity, string theory could provide the long-sought quantum description of gravity that has eluded scientists for decades.
The research was done by Caltech’s Clifford Cheung and Aaron Hillman along with Grant Remmen at New York University. They have delved into the intricate mathematics of scattering amplitudes, which are quantities that encapsulate the probabilities of particles interacting when they collide.
My substring-ball theory uses bits of string attached to balls that are 10^-36m in size… You will never be able to see my balls, but trust me bro… we will have the tech to see them in about 100 years, just you wait.
Seriously though, it just seems that every answer ends with “But wait! If you do this thing with that thing that we can never test or prove, then everything makes sense.”