Bill Gates famously called George Gilder "very stimulating even when I disagree with him, and most of the time I agree with him." The issues on which Gilder has staked out stimulating positions over more than 30 years as a writer and public intellectual are wide-ranging. They include the causes of poverty and the creators of wealth; the consequences of modern feminism; and the possibilities opened by the high-tech revolution. His arguments are often surprising, always provocative and generally controversial. His latest book is titled "The Israel Test." Much of what he says is dramatically different from what just about...