Where Some See Strings, She Sees a Space-Time Made of Fractals
Summary
Quanta Magazine explores asymptotic safety, a quantum gravity approach in which space-time may behave fractally at the smallest scales. Astrid Eichhorn explains how a fixed point could stabilize physics across scales, potentially connecting Planck-scale effects to observable particle properties and offering testable predictions through dark matter searches and collider data. The piece also discusses how renormalization and scale symmetry could reshape our understanding of space-time.