Stephen Hawking recently stated that we do not need God to explain where everything comes from. Theoretical physics can provide the answer. My question to Hawking is: How does he explain the laws that were functioning with the Big Bang? Where do these laws come from? Physical laws are predictable, orderly events on which we can rely. Science is about testing knowledge against stated criteria or laws. So why is reality knowable (having laws to uncover, to use to our benefit)?