Homo sapiens emerged as a species about 200,000 years ago and soon––with fire, simple tools, and an egalitarian social system––we inhabited every continent. But now our infinitely elaborated tools and our highly non-egalitarian social system threaten sustainability. Many at the bottom lose the desire to live, committing suicide or succumbing to drugs, alcohol, and obesity. As women gain education and contraception, they lose the desire to reproduce, and our species' total fertility plummet...

A practical guide to scientific writing that applies George David Gopen’s Reader Expectation Approach to help researchers communicate with greater clarity, precision, and reader impact.For more than three decades, George David Gopen’s Reader Expectation Approach (REA) has transformed how scientists, researchers, and professionals write—not by prescribing rules, but by revealing how readers read. REA was first introduced in his highly acclaimed 1990 American Scientist article, “The Scie...