When I called up Bert Etling, old-fashioned style using the phone, the first thing I said was that I was one of him. “I’m a real person,” I insisted. I think he believed me? Etling’s an editor who has ...

The talk is part of the Silicon Valley Astronomy Lecture Series, now in its 27th year. The story of our existence can be told as a passage through nine interwoven realms—each revealing a new layer of ...