Are electron clouds formed because the electrons are traveling near the speed of light? If so, why is a "cloud" formed --- a colloid, that is. If it is possible to form a more uncommon type of matter like a colloid by traveling near the speed of light, could you possibly form dark matter by traveling near the speed of light? Generally, you imagine "normal," baryonic matter being formed when one travels near light speed (arbitrarily say 99.99% C). But what if it were possible that dark matter formed as a result of this acceleration toward C? And what if you explained the overabundance of matter in the universe by saying that the explosive expansion of space itself at light speed caused this dark matter to form?