When He opened the third seal, I heard the third living creature say, “Come and see.” So I looked, and behold, a black horse, and he who sat on it had a pair of scales in his hand. And I heard a voice in the midst of the four living creatures saying, “A quart of wheat for a denarius, and three quarts of barley for a denarius; and do not harm the oil and the wine.” (Revelation 6:5–6)

I.

Modern Western civilization stands on the twin plinths of science and technology. Taken together, these two interrelated domains reassure us that the 19th-century story of never-ending progress remains intact. Without them, the arguments that we are undergoing cultural decay — ranging from the collapse of art and literature after 1945 to the soft totalitarianism of political correctness in media and academia to the sordid worlds of reality television and popular entertainment — would gather far more force. Liberals often assert that science and technology remain essentially healthy; conservatives sometimes counter that these are false utopias; but the two sides of the culture wars silently agree that the accelerating development and application of the natural sciences continues apace.

Yet during the Great Recession, which began in 2008 and has no end in sight, these great expectations have been supplemented by a desperate necessity. We need high-paying jobs to avoid thinking about how to compete with China and India for low-paying jobs. We need rapid growth to meet the wishful expectations of our retirement plans and our runaway welfare states. We need science and technology to dig us out of our deep economic and financial hole, even though most of us cannot separate science from superstition or technology from magic. In our hearts and minds, we know that desperate optimism will not save us. Progress is neither automatic nor mechanistic; it is rare. Indeed, the unique history of the West proves the exception to the rule that most human beings through the millennia have existed in a naturally brutal, unchanging, and impoverished state. But there is no law that the exceptional rise of the West must continue. So we could do worse than to inquire into the widely held opinion that America is on the wrong track (and has been for some time), to wonder whether Progress is not doing as well as advertised, and perhaps to take exceptional measures to arrest and reverse any decline.

The state of true science is the key to knowing whether something is truly rotten in the United States. But any such assessment encounters an immediate and almost insuperable challenge. Who can speak about the true health of the ever-expanding universe of human knowledge, given how complex, esoteric, and specialized the many scientific and technological fields have become? When any given field takes half a lifetime of study to master, who can compare and contrast and properly weight the rate of progress in nanotechnology and cryptography and superstring theory and 610 other disciplines? Indeed, how do we even know whether the so-called scientists are not just lawmakers and politicians in disguise, as some conservatives suspect in fields as disparate as climate change, evolutionary biology, and embryonic-stem-cell research, and as I have come to suspect in almost all fields? For now, let us acknowledge this measurement problem — I will return to it later — but not let it stop our inquiry into modernity before it has even begun.

II.

When tracked against the admittedly lofty hopes of the 1950s and 1960s, technological progress has fallen short in many domains. Consider the most literal instance of non-acceleration: We are no longer moving faster. The centuries-long acceleration of travel speeds — from ever-faster sailing ships in the 16th through 18th centuries, to the advent of ever-faster railroads in the 19th century, and ever-faster cars and airplanes in the 20th century — reversed with the decommissioning of the Concorde in 2003, to say nothing of the nightmarish delays caused by strikingly low-tech post-9/11 airport-security systems. Today’s advocates of space jets, lunar vacations, and the manned exploration of the solar system appear to hail from another planet. A faded 1964 Popular Science cover story — “Who’ll Fly You at 2,000 m.p.h.?” — barely recalls the dreams of a bygone age.

The official explanation for the slowdown in travel centers on the high cost of fuel, which points to the much larger failure in energy innovation. Real oil prices today exceed those of the Carter catastrophe of 1979–80. Nixon’s 1974 call for full energy independence by 1980 has given way to Obama’s 2011 call for one-third oil independence by 2020. Even before Fukushima, the nuclear industry and its 1954 promise of “electrical energy too cheap to meter” had long since been defeated by environmentalism and nuclear-proliferation concerns. One cannot in good conscience encourage an undergraduate in 2011 to study nuclear engineering as a career. “Clean tech” has become a euphemism for “energy too expensive to afford,” and in Silicon Valley it has also become an increasingly toxic term for near-certain ways to lose money. Without dramatic breakthroughs, the alternative to more-expensive oil may turn out to be not cleaner and much-more-expensive wind, algae, or solar, but rather less-expensive and dirtier coal.