What we call the past is built on bits. - Kenneth W. Ford

Spacetime tells matter how to move; matter tells spacetime how to curve.

Recent decades have taught us that physics is a magic window. It shows us the illusion that lies behind reality — and the reality that lies behind illusion. Its scope is immensely greater than we one realized. We are no longer satisfied with insights only into particles, or fields of force, or geometry, or even space and time. Today we demand of physics some understanding of existence itself.

We live on an island of knowledge surrounded by a sea of ignorance. As the island of knowledge grows, so does the shore of our ignorance.