But then, she reflected, Ian did have strange friends. They were always showing up unexpectedly at his apartment—the Japanese calligrapher, the Indonesian gamalan troupe, the Las Vegas juggler in a shiny bolero jacket, that weird French astrologer who thought the earth was hollow.… And then there were his mathematician friends. They were really crazy. Or so they seemed to Sarah. They were so wild-eyed, so wrapped up in their proofs. Pages and pages of proofs, sometimes hundreds of pages. It was all too abstract for her.
