Randall might be correct for conventional optics, but what about metamaterial lenses that break the diffraction limit? https://en.m.wikipedia.org/wiki/Superlens

Randall might be correct for conventional optics, but what about metamaterial lenses that break the diffraction limit? https://en.m.wikipedia.org/wiki/Superlens https://en.m.wikipedia.org/wiki/Superlens