Seiberg, Nathan

Nathan Seiberg

Institute for Advanced Studies
Princeton, New Jersey

ArXiv: Exotic U(1) Symmetries, Duality, and Fractons in 3+1-Dimensional (2020), Emergent Spacetime (Jan. 2006), Why is the Matrix Model Correct? (1997) (ABS)
CV: Publications
Google Scholar

Talk: Where is Fundamental Physics Heading?

First email: Saturday, 13 October 2018 (Revised/resent: 2020)

Dear Prof. Dr. Nathan Seiberg:

We are high school people who have backed into a very simple outline of the universe. We were following the embedded geometries of the tetrahedron and octahedron, smaller and smaller, back to the Planck Length (and Planck Time). It took 112 base-2 notations. We then multiplied by 2, essentially doubling, then doubling over and over again. In 90 doubling we were out the size and age of the universe. We wrote it up as a STEM tool and assigned those things that approximately “fit” within each of those 202 notations. Of course, when we got below the sizes within particle physics, we had to learn something new again. What could possibly be there?

I knew enough to know that I didn’t know anything. A friend in graduate school was Patricio Letelier (BU) who with Tom Banks’ wrote a paper “A Critique of Pure String Theory: Heterodox Opinions of Diverse Dimensions” (published in 2003).

Thinking about strings, might we say that very shortest distance is the radius (then the diameters ) of the “plancksphere” defined at the Planck scale by the four base units? Here are a few of my rough ideas here:

Could the supersymmetries* we seek to discover simply be just below the CERN scale and from the Planck scale; i.e. beyond all possibilities of measurement?  For example, from the Planck base units to the CERN-scale of measurement, there are no less than 64 successive doublings of Planck’s numbers. Given that there are many different, simple doubling mechanisms built into the universe, might it follow that we have the beginnings of an outline for a new model of the universe with a natural inflation?

Our chart of numbers for that outline is here:

These rather simple, naive concepts, perhaps too simple for our scholars and our academic community just might have been entertained by someone like John Wheeler who seemed to believe in the simple.  In that chart of 202 notations, space and time are finite, discrete, and derivative.

If you have any comments for me, you know I will be very grateful. Thank you for all that you have done and all that you are doing to open scholarship to everyone.

Most sincerely,


* N. Seiberg, Five-dimensional SUSY field theories, nontrivial fixed points and string dynamics, Phys. Lett. B388(1996) 753 [hep-th/9608111] ArXiv

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