Book excerpt: "Matthews brings a scientist's skepticism and scrutiny to widely held ideas and beliefs about viticulture--often promulgated by people who have not tried to grow grapes for a living--and subjects them to critical examination: Is terroir primarily a marketing ploy that obscures our understanding of which environments really produce the best wine? Can grapevines that yield a high berry crop generate wines of high quality? What does it mean to have vines that are balanced or grapes that are fully mature? Do biodynamic practices violate biological principles? These and other questions will be addressed in a book that could alternatively be titled (in homage to a PUP bestseller) On Wine Bullshit"--Provided by publisher.