In Weinstein’s theory, called Geometric Unity, he proposes a 14-dimensional “observerse” that has our familiar four-dimensional space-time continuum embedded within it. The interaction between the two is something like the relationship between the people in the stands and those on the pitch at a football stadium - the spectators (limited to their four-dimensional space) can see and are affected by the action on the pitch (representing all 14 dimensions) but are somewhat removed from it and cannot detect every detail.
In the mathematics of the observerse there is no missing dark matter. Weinstein explains that the mass only seems to be missing because of the “handedness” of our current understanding of the universe, the Standard Model of particle physics. This is the most complete mathematical description physicists have of the universe at the quantum level and describes 12 particles of matter (called fermions) and 12 force-carrying particles (called bosons), in addition to their antimatter partners.
“The Standard Model relies on a fundamental asymmetry between left-handedness and right-handedness in order to keep the observed particles very light in the mass scale of the universe,” says Weinstein.
He says his theory does not have the asymmetry associated with the Standard Model. The reason we cannot easily detect the dark matter is that, in the observerse, when space is relatively flat, the left-handed and right-handed spaces would become disconnected and the two sides would not be aware of each other.
I assume the experts are now tearing this theory apart to see if there’s any flaws in it. If it holds true, there’s at least 150 sub-atomic particles waiting to be discovered.