Why do we perceive the sun as yellow? I understand that its colour arises from the mixture of wavelengths in sunlight. But as sunlight has been the main source of illumination throughout evolution – the background light to everything on the planet up to the invention of electric light – it gives us our default colour for everything. So why don’t we consider it to be the neutral colour – in other words, white?
Perry Bebbington, Kimberley, Nottinghamshire, UK