At the heart of all mythologies is the attempt to answer the question "Where do we come from?" and its corollary, "Why are we here?" If the answer to the first question is "nothing," than many of us will be uncomfortable with the answer to the second question.
"Nothing" is the answer that is offered to us through the laws of quantum mechanics. But once we have understood the implications of this notoriously difficult concept, what are the implications for how we find a moral purpose in our lives?
In today's lesson, physicist Lawrence Krauss says the idea that we are not the instruments of some creator is not pessimistic, but "spiritually uplifting."