Light wavelength can be as big as the empire state ( radio) or as small as a Planck 's length (lethal radiation) so there is a big "not impressive" margin.
Still very impressive precision in nanometers but we gave way smaller things (chip manufacturering).
rudy21SIDER t1_j34ap9g wrote
Reply to comment by ChronoX5 in What are the physical limits of stamping optical media like blu-ray discs? by ChronoX5
Light wavelength can be as big as the empire state ( radio) or as small as a Planck 's length (lethal radiation) so there is a big "not impressive" margin.
Still very impressive precision in nanometers but we gave way smaller things (chip manufacturering).