Lights Illuminate Surfaces Superluminally

TL;DR

The paper proves that the illumination front on surfaces illuminated by a changing light source can move faster than light, revealing superluminal information spread across surfaces.

Contribution

It provides a simple proof that illumination fronts can move superluminally, expanding understanding of light propagation and information transfer on illuminated surfaces.

Findings

Illumination fronts can move faster than light.

Superluminal information transfer occurs on illuminated surfaces.

Proof applies to any varying compact light source.

Abstract

When a light bulb is turned on, light moves away from it at speed $c$, by definition. When light from this bulb illuminates a surface, however, this illumination front is not constrained to move at speed $c$. A simple proof is given that this illumination front always moves {\it faster} than $c$. Generalized, when any compact light source itself varies, this information spreads across all of the surfaces it illuminates at speeds faster than light.