Reactions to biodynamic and organic methods

As one who can always see both sides of every argument and who spends her life sitting rather boringly on the fence, I am fascinated by the depth of emotion stirred up by the subjects of organic and biodynamic agriculture in general and viticulture in particular. Below are two recent correspondences I have enjoyed with two fierce opponents of biodynamics, a South African wine writer and a British agronomist. I thought you might also find them interesting and thought-provoking.   

I had been told by Chris Williams, winemaker at Meerlust in South Africa, that South African wine writer Tim James...