The Transcendent Brain

“If you could tag each of the atoms in your body and follow them backward in time, through the air that you breathed during your life, through the food that you ate, back through the geological history of the Earth, through the ancient seas and soil, back to the formation of the Earth out of the solar nebular cloud, and then out into interstellar space, you could trace each of your atoms, those exact atoms, to particular massive stars in the past of our galaxy.”