[* In my initial query to Brown, Smil and others, I noted how Paul Krugman had migrated in the last several years toward the conclusion he made in December that rising commodity prices were driven increasingly not by speculation or other such factors but by fundamental constraints on resources in the face of fast - rising demand). (dotearth.blogs.nytimes.com)
Of course he hadn't written anything quite as captivating in recent years, but still, I will miss the chance to once again see his unique combination of faith in humanity, superb imagination, and grasp of fundamental constraints of physics and technology that made his stories seem so real, while at the same time so far beyond our experience. (dotearth.blogs.nytimes.com)
Fundamental constraints limit the potential supply of highly effective teachers of color. (americanprogress.org)