GENERATIONS: The Real Differences between Gen Z, Millennials, Gen X, Boomers, and Silents--and What They Mean for America's Future by Jean M. Twenge. New York: Atria Books, 2023. 560 pages. Hardcover; $32.50. ISBN: 9781982181611. E-book; $16.99. ASIN: B0B3Y9RSFP. *"Thinking without comparison is …