The Asymptote
One of the most puzzling observation that I had as a child was about colours. How does one know that the colour they see is the same colour that others see? For instance, when a person refers to an object as the colour red, does that object appear as the same colour of red in another person’s eyes, or does the second person simply agree that the object is of the colour red, but the redness they see is in fact a different colour from what the first person sees. Say, maybe, what the first person sees as the colour red, and according to the colours as defined in the first person’s perspective, the second person actually sees the colour blue, but refers to it as red because that is the standardized reference and facilitates institutions such as the traffic lights. People may agree that the light has turned red, but not necessarily what red is. ...