391-Growth-Vaclav Smil-Economics-2019
Barack
2021/12/19
" Growth ", first edition in 2019. It conducts a systematic survey of the growth of nature and society, covering the trajectory from tiny organisms to empires and civilizations. It tells us that the trajectory of modern civilization, driven by material growth and the competitive demands of biosphere constraints, is still uncertain.
Vaclav Smil, born in Plze ň, Protectorate of Bohemia and Moravia in 1943, studied at Charles University in Prague. His interdisciplinary research interests include a wide range of areas of energy, environment, food, population, economics, history, and public policy research. He also applied these methods to China's energy, food, and environmental affairs.
Table of Contents
1 Trajectories: or common patterns of growth
2 Nature: or growth of living matter
3 Energies: or growth of primary and secondary converters
4 Artifacts: or growth of man-made objects and their performances
5 Populations, Societies, Economies: or growth of the most complex assemblies
6 What Comes After Growth: or demise and continuity
" Sustainable growth is, of course, a clear contradiction in adjecto as far as any truly long-run material growth is concerned (I am ignoring any possibilities of migrating to other planets after exhausting the Earth's resources) and it is highly doubtful that we can keep on improving such intangibles as happiness or satisfaction. Most of the adjectives used to describe growth are qualifiers of its rate: often it is not the growth per se that we worry about but rather its rate, either too fast or too slow. ”
"Sustainable development" is being talked about more and more. To maintain continuous development, I think we must continue to improve production efficiency. And if you want to continuously improve production efficiency, at present, it mainly depends on the innovation and iteration of technology.
"Each has a beginning and an end; and one and the same curve may illustrate the life of a man, the economic history of a kingdom… It depicts a mechanism at work, and helps us to see analogous mechanisms in different fields; for Nature rings her many changes on a few simple themes” (Thompson 1942, 139). ”
"Out of the image, get it in the ring". The appearance of things is endless, but their cores may be similar. When we deeply understand the inner meaning of "growth", we may use this concept to understand the appearance of different fields.
“ Microbes, fungi, and insects make up most of the biosphere's organisms, and common time spans of interest in microbiology and invertebrate biology are minutes, days, and weeks. Bacterial generations are often shorter than one hour. ”
Our perception of time actually depends on the length of our lives. For mankind, 100 years is a lifetime. For some plants, it may be 100 generations. But for some trees, it may be only 1/10 of life. We must understand the length of this life and many things we can do; we must also understand the shortness of life, where many people and things are fleeting.
" Some studies have tried to reconstruct national economic growth going back for centuries, even for millennia, but (as I will emphasize later) they belong more appropriately to the class of qualitative impressions rather than to the category of true quantitative appraisals. Reliable historical reconstructions for societies with adequate statistical services go back only 150–200 years. ”
The highly quantified form of civilization that we are accustomed to today is actually only a hundred years old. For a country like China that has only gradually caught up with the world's development in recent decades, the statistical data recognized by modern science may only exist for a few decades. We look back, to understand history, in the end, to look forward. Use the past to guide the future.
“ As for the fundamental quantities whose growth defines the material world, the International System of Units (Système international d'unités, SI) recognizes seven basic entries. They are length (meter, m), mass (kilogram, kg), time ( second, s), electric current (ampere, A) thermodynamic temperature (kelvin, K), amount of substance (mole, mol), and luminous intensity (candela, cd). ”
These units of measurement are the cornerstones and scales by which we can understand the objective world. You must be able to measure before you can analyze it, and in the end, it is possible to do more. For individuals, you must measure your own time before you can manage time. Only if you want to measure your own money, you can manage it.
“ In August 1969, the Apollo 11 computer used to land the manned capsule on the Moon weighed 32 kg and had merely 2 kB of random access memory (RAM), or about 62 bytes per kg of mass (Hall 1996). Twelve years later, IBM's first personal computer weighed 11.3 kg and 16 kB RAM, that is 1.416 kB/kg. In 2018 the Dell laptop used to write this book weighed 2.83 kg and had 4 GB RAM or 1.41 GB/kg. Leaving the Apollo machine aside (one-of-a-kind, noncommercial design), personal computers have seen a millionfold growth of memory/mass ratio since 1981! ”
The growth rate of things is an important indicator for us to predict how it will develop in the future. If an area has had a higher growth rate in the past few years, it is more likely to continue to maintain high growth in the future, which means that there are more possibilities in this area.
“ And while the worldwide car sales were less than 100,000 vehicles in 1908, they were more than 73 million in 2017, roughly a 700-fold increase. This means that the total mass of new automobiles sold globally every year is now about 2,500 larger than it was a century ago. ”
The rapid growth rate of the market means more business opportunities. For example, countries around the world are strengthening the advocacy of new energy vehicles, and the growth in the production and sales of new energy vehicles is increasing year by year, so it is a very obvious signal.
" Exponential growth, with its gradual takeoff followed by a steep rise, attracts attention. Properties of this growth, formerly known as a geometric ratio, or geometric progression, have been illustrated for hundreds of years—perhaps for millennia, although the first written instance comes only from the year 1256—by referring to the request of a man who invented chess and asked his ruler-patron to reward him by doubling the number of grains of rice (or wheat?) laid on every square. ”
Exponential growth is actually our biggest concern because it represents more possibilities. Exponential growth satisfies people's yearning for rapid growth. Luck aside, to carefully construct a form that produces exponential growth, linear continuous accumulation is still required.