forecast

Predicted deviation from inverse-square gravity at micron scale

Because the model has one extra micron-scale dimension, Newton's inverse-square (1/r^2) force law should change to inverse-cube (1/r^3) below about a micron; current experiments have confirmed 1/r^2 down to ~30 microns, and a Vienna group is attempting to probe down to ~10 microns where the predicted change could appear.

forecastpending

Speaker

Cumrun Vafa

Evidence Quote

We are predicting that the one of RS squared, because we have one more dimension, becomes one of our acute. If you go for Rs, which is less than a Micron or so, up to now, it has been measured up to distance of 30 microns, that it does not become one of RQ.

Source

277 | Cumrun Vafa on the Universe According to String TheorySean Carroll's Mindscape
Created: 6/13/2026, 12:07:45 AM

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