And Have You Ever Met This Gentleman Before? No, Sir, I Have Not.

This morning I talked with Nobel-prize-winning physicist John Mather and a few dozen high school students from New York, Kansas, Florida, and Ghana at the World Science Festival. In a testament to the maturity of videoconferencing technology, we actually had a fantastic conversation, which consisted in large part of the students peppering Mather about cosmology, his area of expertise. I remember well being 14 and thinking to myself, "So…wait a minute…if the universe is expanding, what's it...