Bloomberg ETF Analyst Eric Balchunas put the downtime of the pandemic to use by writing a forthcoming book about John C. Bogle, the late visionary founder of Vanguard, who changed how we think about "democratized" modern investing and index funds forever. Listen as Balchunas talks to Jim about what he learned about Bogle, and how "St.Jack's" legacy has continued to speak to millennial and Gen Z investors who are disillusioned with Wall Street.