No, it is not possible to travel in complete darkness without any light source at all. Humans rely on light to see and navigate their surroundings. In the absence of any light, our eyes are unable to detect objects or perceive the environment around us.
In situations of complete darkness, our visual perception becomes ineffective, and we experience a condition known as "absolute darkness." In such circumstances, it is nearly impossible to move or travel without stumbling, as we cannot see potential obstacles, hazards, or the path ahead.
However, it's worth noting that some animals, such as certain species of bats or marine creatures, have developed adaptations to navigate and locate objects in low-light or dark environments using other sensory mechanisms like echolocation. These animals emit sounds or use other sensory abilities to detect their surroundings without relying on visible light.
For human navigation in the absence of light, individuals might employ alternative methods like using touch, hearing, or specialized equipment such as night-vision goggles or thermal imaging devices that can detect infrared radiation. These methods can provide a limited sense of the surroundings even in darkness.