Why does white look white in any light?

[00:00:00]Your brain continuously runs background calculations adjusting for ambient light, compensating for aging lens yellowing that begins around age 25 and progressively filters short wavelengths by 60% before age 70, and filtering out neural noise that would otherwise fracture visual coherence into static.

[00:00:16]The physics of electromagnetic radiation remains completely indifferent to human experience. Wavelengths do not carry emotional weight or aesthetic value.

[00:00:24]Color exists only as an interface between biological hardware and environmental data streams, constructed moment by moment through cascading electrochemical reactions spanning cornea to cortex.