The Speed of Light Isn't About Light... It’s Your Speed Through Time

Close your eyes for a moment and imagine the darkest room you have ever been in. Not just a room with the lights off, not a moonless night in the countryside, but a place where no light has ever existed. No stars, no fire, no glow of a phone screen, no faint blue shimmer of a television left on in another room. Now push further. Imagine a universe where light itself has never existed. No photons, no electromagnetic waves, no radio signals, no X-rays, no heat radiating from a warm stone. Nothing that your eyes could ever detect, nothing that any instrument could ever measure. You might think that in such a universe, the speed of light would be a meaningless concept, a relic of a physics that never was, a number with nothing to attach itself to.