I’m delighted to report that Sonia Arrison will be guest-blogging this coming week about her new book, 100 Plus: How the Coming Age of Longevity Will Change Everything, From Careers and Relationships to Family and Faith. “Humanity is on the cusp of an exciting longevity revolution,” Sonia’s site says. “The first person to live to 150 years has probably already been born.” I certainly hope she’s right, and I much look forward to her posts.