Society’s “30 is the new 20” mantra is a disservice to the country’s 50 million twentysomethings, according to clinical psychologist Meg Jay, author of the best-selling book The Defining Decade: Why Your Twenties Matter–And How to Make the Most of Them Now. Drawing on more than 10 years of work with hundreds of twentysomething clients and students, Jay contends that a young person’s 20s is the most transformative period of their adult lives and should not be trivialized as a benign decade of delayed adolescence. Jay will present “How to Make the Most of Your 20s,” on Mar. 14 in McGuinn Auditorium at 6 p.m.  The event is presented by Capstone, Cornerstone, the Carroll School of Management Dean’s Office, and CSOM’s Fulton Leadership Society. Watch her TED talk, “Why 30 is not the new 20,” which has more than 10 million views.