Among the speakers scheduled for the TEDx Orange County event (Sept. 20-21 at the Segerstrom Center for the Arts) are a couple of local standouts, Nobel Prize-winning chemist Kary Mullis of Corona del Mar and UC Irvine’s groundbreaking memory researcher Elizabeth Loftus. You’ll leave either speech smarter than when you went in. Promise. But what struck us most about the speaker lineup posted at tedxorangecoast.com/speakercat/2013 is the relative length of two biographies. The bio for Mullis—who in 1983 conceptualized the polymerase chain reaction (PCR) process, hailed as one of the monumental scientific techniques of the 20th century—is 39 words long. The adjacent bio of speaker Sara Volz, a talented 17-year-old high school student, is 827 words long.