The purpose of blogs vary. Many are simply personal ones, where they describe the workings of the author's life. Some are political, rallying for one side and decrying the other. The purpose of this blog is to post my internal musings about things I don't fully understand. There are few answers in this blog, but many questions. No post is a light read - I endeavour to make them long and deep. And I never give a tl;dr version. If I haven't scared you away yet, happy thinking. :D
Describe red to a blind person that doesn't understand physics.
You can't. You could give the definition that it is electromagnetic radiation from some wavelength to some other wavelength, but that's hardly a satisfying definition to people who don't know much about physics. It also doesn't allow them to visualise red.
You could describe the emotions it evokes, but the emotional/cultural aspect of red is only one component. There is still a visual component.
Imagine yourself as a tiny fly. Just buzzing around, everything in grayscale, but massive. As you woosh past a giant, transparent wall, you land on a giant, delicious mound of food. You don't know what it is, but you know it's sweet.
Suddenly, a giant in the distance gasps in disgust, making an apprehensive face as she lays eyes on you. She waves a massive appendage. It's terrifying. It's quick. Too stupid to know that it would never hit you (if it did, it would ruin the cake you'd...