Most religions embrace and promote certain notions about the meaning of life, offering the faithful reasons why we and all other organisms exist. Indeed, perhaps the fundamental definition of religious faith is the belief that life serves a (divine) purpose. Science, however, has always given a resounding "no" to the question "Does life have a higher meaning?"
At least until now.
In a series of lectures and in a forthcoming book, science writers Eric Schneider and Dorion Sagan argue that even from a scientific perspective, life does serve a purpose, and thus does have a meaning that transcends the self. They arrived at this conclusion when trying to reconcile a contradiction that has long puzzled those who study both biology and physics.
Living organisms obviously embody arrangements of matter into complex structures. They transform chemicals and, in an orderly fashion, transport and store them in purposeful ways. Above the level of individual organisms, they form societies and ecosystems. All of us are familiar with these fundamental biological notions, and we are all part of these processes. Order seems to be the name of the biological game, and evolution leads to more complex organisms and more organized structures.
This is, of course, at odds with one of the fundamental principles of physics: the second law of thermodynamics, which holds that entropy -- the degradation of all matter and energy in the universe to an ultimate state of inert uniformity -- increases as a result of each and every process. The more the world develops the more disorder there will be. Physics even accepts the idea that entropy defines the direction of time. In the end everything will be broken down and randomly distributed.
How do Schneider and Sagan reconcile the contradiction between what appears true of life -- that it organizes matter into increasingly complex creatures and structures -- and the notion that disorder should increase and order should be lost? Equally important, how can science see any meaning of life in the reconciliation of that apparent contradiction?
The bottom line is that the second law of thermodynamics rules and that the existence of life helps increase entropy. In other words, life promotes disorder. Some might think that this could be true only if the logical end of evolution and intelligent life were to be a nuclear explosion that pulverized Earth. But that is not what Schneider and Sagan mean. Instead, they make a distinction between matter and energy and say that matter organized in structures disseminates energy gradients faster than randomly distributed matter.
As one example, they consider a phenomenon of which beer drinkers have long been aware. If you want to empty a bottle of water (or beer) and turn it upside down, the water will come out in uneven glugs. If you spin the bottle and create an eddy inside it, the water will flow out much faster and more smoothly. The eddy in the bottle is a structure in the water. Water running down is matter losing its potential energy. The structure speeds up the dissemination of the energy gradient.
Similarly, on a hot day, the air in a forest is cooler than over adjacent bare lands, thanks to evaporation and transpiration in the trees. The energy gradient, in this case that of heat, is disseminated more effectively by the structure of the forest and the life within it.
The more complex the structure the more effective is the energy dissemination. Populations are better in this respect than single individuals; ecosystems even more so, and most effective of all -- so far -- are human high-tech societies.
Thus, goes the argument, the second law of thermodynamics is not contrary to the existence of life; rather, it is the cause of life. That law drives evolution to higher levels of complexity and to more sophisticated societies and technologies for the sole purpose of disseminating energy gradients.
So life, at long last, has a higher meaning in the eyes of science -- even if serving the second law of thermodynamics is not exactly what the religiously faithful had in mind.
Arne Jernelov is professor of environmental biochemistry, an honorary scholar and former director of the International Institute of Applied Systems Analysis in Vienna and a UN expert on environmental catastrophes.
Copyright: Project Syndicate
Life as we know it will probably not come to an end in Japan this weekend, but what if it does? That is the question consuming a disaster-prone country ahead of a widely spread prediction of disaster that one comic book suggests would occur tomorrow. The Future I Saw, a manga by Ryo Tatsuki about her purported ability to see the future in dreams, was first published in 1999. It would have faded into obscurity, but for the mention of a tsunami and the cover that read “Major disaster in March 2011.” Years later, when the most powerful earthquake ever
Chinese intimidation of Taiwan has entered a chilling new phase: bolder, more multifaceted and unconstrained by diplomatic norms. For years, Taiwan has weathered economic coercion, military threats, diplomatic isolation, political interference, espionage and disinformation, but the direct targeting of elected leaders abroad signals an alarming escalation in Beijing’s campaign of hostility. Czech military intelligence recently uncovered a plot that reads like fiction, but is all too real. Chinese diplomats and civil secret service in Prague had planned to ram the motorcade of then-vice president-elect Hsiao Bi-khim (蕭美琴) and physically assault her during her visit to the Czech Republic in March last
Cosmetics have long been one of the “golden pillars” of revenue for department stores in Taiwan. With rows of beauty counters and a full lineup of brands, they once served as a powerful draw for customers. However, since last year, the halo surrounding the sector has begun to fade. It is not an isolated issue affecting one retailer — it is a widespread phenomenon across department stores in Taiwan. Department store executives admit that business is tough, but they also stress that the root cause is not a drop in Taiwan’s spending power or a surge in outbound travel. Instead, a
As things heated up in the Middle East in early June, some in the Pentagon resisted American involvement in the Israel-Iran war because it would divert American attention and resources from the real challenge: China. This was exactly wrong. Rather, bombing Iran was the best thing that could have happened for America’s Asia policy. When it came to dealing with the Iranian nuclear program, “all options are on the table” had become an American mantra over the past two decades. But the more often US administration officials insisted that military force was in the cards, the less anyone believed it. After