Three men, the famous Michael Atiyah, together with Nicholas S. Manton and Bernd J. Schroers, propose "Geometric Models of Matter".
This is modern academic comedy writing. You will note that they do not speak about quarks, nor about W and Z bosons. They also have problems incorporating spin 1/2. Nor do they describe interactions.
In short, they neglect most of modern physics, but still claim to have done something sensible. What is the truth? They just played a little with their favorite mathematical concepts. But they did not do anything sensible.
It seems that Atiyah has completely lost contact with reality. What a pity - he was one of the sharpest minds of mathematics.