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How can we measure this? Here are some ways. • The total number of different occupations. • The reduced correlation between a person's occupation and that of his or her father or mother. • The increase in the number of available hobbies. • The increased choice in where to live. Grown children often live, by choice, very far from their parents. • Increased public tolerance of different lifestyles. ) • More opportunity to enjoy both culture and nature. • Cleaner environment. Q. What if the population increases? A. There is certainly a limit to the population the earth can support, and migration into space can only occur very slowly at the present level of technology. The limiting factor may be food, World Progress Here are some aspects of recent world material progress that we expect to continue. 1. Larger quantity and variety of available food. I 2. Better health. Almost all countries are experiencing an increase in lifespan and a reduction in the fraction of their time people spend ill. 3 The elimination of child labor. It is hard for us to imagine the evil of putting children to work in the coal mines at age six. 4. Shorter work time. Increased productivity has permitted this. The improvement is both in free hours per week and increased years available for education and retirement. 5. Improved housing. More space and more privacy. 6. Individual mobility from the automobile. 7. Increased availabilty of material goods of all kinds. 8. Increased independence of old people. 9. Increased personal mobility. 10. Increased equality. This is often disputed, but it can be verified looking at the changes in expected length of life in different groups in the population. 11. Privacy: One family homes; Individual rooms.;Personal transportation. Most of us drive to work in our own cars. Government of law - not of men. That even the highest officials of government are subject to the law is a recent idea. It is only since the 18th century that a person would experience enough progress in his lifetime to regard continued progress as a normal state of society. (责任编辑：admin) |
