Changing technology stimulates (刺激) the brain and increases intelligence. But that may only be true if the technology challenges us. In a world run by intelligent machines, our lives could get a lot simpler. Would that make us less intelligent?

    After the Industrial Revolution, machines began to replace manual workers. The process played out in agriculture as well as manufacturing so that groups of agricultural workers were replaced and forced to move to cities to make a living.

    When machines took away much of the manual work, people became less physically active and gained weight. The sedentary (久坐的) lifestyle contributed to a worldwide spreading of overweight and related metabolic disorders such as heart disease, secondary diabetes and kidney disease .

    As our bodies rested, our brains were forced to work harder, however. It is much more difficult to drive through an overcrowded modern city than it is to move around in a small rural village, for instance. Modern jobs are also more complex and urgent and they require more education because employees need to process new information quickly. Even during our leisure time, our brains work harder due to greater availability of books and explosion of audiovisual media, for entertainment, study, music, news, and so forth.

    Now in the Internet age, the amount of information grows fast along with the advance of electronic technologies. The number of people with whom we interact electronically grows by leaps and bounds thanks to the ease of use of social media like Facebook and Twitter.

    All of this extra work for our brains makes us more intelligent. That helps explain why human intelligence increases steadily from generation to generation in all developed countries, a phenomenon named the Flynn Effect. Of course, there are other reasons, including improved nutrition, better medical practices that reduce brain damage, and improved sanitation and public health that reduce diseases of childhood.

    In the P.G Wodehouse novels, Bertie Wooster got away with being a fool because Jeeves was there to back him up with superior brain power. Similarly, people of the future are at risk of being less intelligent because machines will do their thinking for them.

    Artificial intelligence is taking over many human jobs. For instance, planes are being flown much of the time by automatic pilots. Moreover, the complex problem of controlling air traffic around large modern airports is also achieved by artificial intelligence that operates well beyond the capability of mere human air traffic controllers.

    Artificial intelligence exists in many fields of modern life for the simple reason that intelligent machines can already outperform humans, including some aptitudes (天资) which were once thought to be a human advantage, such as playing chess or recalling details in a game of Jeopardy.

    Machine intelligence is increasing much faster than human intelligence. As machines get smarter, they will do more of our thinking for us and make life easier.

    Instead of struggling to identify ourselves to some electronic system via passwords that are secure only if they are hard to remember, the system will work harder to identify us using biometrics (生物测定学) such as fingerprints or even the individual sound of our hearts. More technologies of the future may also be voice-activated so that we will talk with machines much as we would talk to a friend.

    In the future, the electronic assistant will develop to the point where it serves similar functions as a real living chief male servant of a house, fulfilling requests such as: “Organize a dinner party for six on Thursday, Jeeves, and invite the usual guests .”

    At that point, our long struggle with challenging technologies is at an end. Like Bertie Wooster, we can take it easy knowing that the hard work of planning and organizing is being done by a better brain—the electronic assistant. Starved of mental effort, our brains will return to an earlier or less advanced form.

    The future is still in the fog.

    Dave Merry and his tools have been through a lot together. The tools helped Dave, now 80, repair his home in St. Paul, Minnesota, where he and his wife, Annette Merry, lived for 46 years and raised three children. The table saw, the jointer plane, the drill press, and the dozens of other power and hand tools had pride of place in his carefully organized workshop. "I had a whole setup, and it was beautiful," says Dave, a retired engineer.

    But then Annette experienced a stroke (中风) that left her relying on a walker to get around, and the Merrys decided to move into assisted living. Dave's workshop was obviously a minor consideration given Annette's condition, but the family knew that giving it up, on top of everything else, would hurt.

    It was the Merrys' daughter who came up with a possible solution. She'd heard about some people who were setting up a tool library—a nonprofit facility that would lend out tools just as a regular library lends books. Might Dad be interested in donating his?

    "I said yes," Dave says.

    The people creating the St. Paul Tool Library were thrilled. They had expected it would take a year to collect enough tools to make their facility fully functional. Instead it took one day: the day Dave donated his.

    The library's founders drove over to the Merrys' house and picked everything up themselves. The library is housed in the basement of the American Can Factory. Members pay an annual fee (from $20 to $120) for unlimited tool use and a varying number of visits to the workshop. And they get an extra benefit: Dave Merry. "Almost every time we're open, Dave's here," says one of the founders, Peter Hoh. "It means a lot to me to be able to go and use my tools," Dave says. "But it means just as much to help DIYers use the tools properly."

    As Hoh puts it, "This is his workshop now."

    I'm a real book lover. Every time my friends visit me, my nose is buried in a book. Wherever I go, I always have a book with me. Novels, history books, stories about people, journals and news—I read them all and I've learnt a lot, too. For example, many things in life happen for the best even if we don't like or understand them.

    Why is reading such an enjoyable pastime for me? I probably first learned about it from my parents. My mother read to me at night in my childhood and bought me picture books. The greatest gift she has given me is a love for reading. And it will be a life-long habit.

    No one ever asked me why I liked to read. They just saw me and asked, "Oh? Is that for school work?" And I just shook my head, "No. It's just for fun." While reading a good book, I can totally forget myself and fly to another world. It's like exploring through someone's eyes, which is just as exciting as watching a movie.

    Reading is also necessary in order to learn about writing, to improve my use of words and phrases and broaden my knowledge. What a pity to see our imagination disappear, for we don't exercise it often. Reading can even be good for one's health, I think. Everyone should read sad stories that make us cry and also books with humor that make us laugh out loud!

    Over the next decade, technology will decimate more jobs in many professions.

    Some robots already cost less to operate than the salaries of the humans they replace, and they are getting cheaper. Boston Consulting Group predicts that, by 2025, the operating cost of a robot that does welding (焊接) will be less than $2 per hour, for example. That's more affordable than the $25 per hour that a human welder earns today in America.

    Uber and many other companies are working on developing cars and trucks that don't need a driver in the driver's seat. According to the American Trucking Associations, approximately 3 million truck drivers were employed in the United States in 2010, and 6. 8 million others were employed in other jobs relating to trucking activity. So roughly one of every 15 workers in the country is employed in the trucking business. We could be talking about millions of jobs disappearing in the early 2020s.

    And then there is the "Gig Economy (零工经济)" that has some businesses moving toward part-time, on-demand employment. Uber has already done this to taxi drivers, and other technology companies are doing it to a wide range of jobs. A study by Intuit predicted that, by 2020, 40% of American workers will be self-employed, and that full-time jobs will be harder to find. We are talking about 60 million people in this category. The problem is that not only do such part-time workers lack reliable full-time jobs and sick pay, but they can't enjoy health insurance and longer-term benefits.

    The measures to be taken are to raise trade barriers. But closing the doors to foreign trade won't bring jobs back. It will only slow the global economy and hurt American exports, shrinking the U. S. economy and accelerating job loss.

Traveling Tips

    No Smoking

    Federal and State Government Regulations do not allow you to smoke on board express coaches within Australia.

    Luggage Allowance

    As a fare paying customer you are entitled to take 2 pieces of personal luggage. Each must not exceed 75 cm in length, or weigh more than 20kg.

    Excess luggage will be carried at the company's excess luggage rate and depending on space availability may be required to be carried on another coach.

    Luggage Tips

    1) Keep your valuables with you. Money, jewellery, valuable documents, credit cards, keys, medications should be retained by you and not on the coach at meal or transport stops.

    2) Use sturdy, lockable luggage. Do not use plastic bags as these may split during the transit.

    3) Make sure you identify your luggage with a name tag.

    4) Backpacks—stow all items and do not leave mugs, shoes, towels hanging off your backpack as these can get caught in other luggage and cause damage.

    Departure Times

    The time shown on your ticket is the coach departure time. If you are boarding halfway and not at a travel centre or terminal you should be at the pick up point 15 minutes ahead of this time, so you can be comfortably on board by the time the coach is due to leave. If you are boarding at a travel centre or terminal, please arrive at least 20 minutes prior to the published departure time and remember to allow extra time at peak travel times.

    Dress Requirements

    As a courtesy, and so as not to offend fellow travelers, a reasonable standard of clothing and footwear is required.

It's always exciting to receive a letter in the mail. Even today, when the world is digitally connected, receiving an actual letter in your mailbox from a distant land is a great way for children to make new friends. 

The Peaceful Pen Pals Project is a beautiful initiative that combines global connection and self-expression. The project is part of the nonprofit Kids for Peace, founded by Jill McManigal and Danielle Gram in California, in 2006. Letter writing is most certainly hands-on and helps strengthen relationships throughout the world. 

The Peaceful Pen Pals Project is open to all children, ages 2 through 17. To date, there are 1500 children from 17 countries participating in the program. Each child is assigned a pen pal of a similar age. This establishes a point of connection right off the bat for the children and promotes a stronger bond. If the letter writers are in the same grade, they can chat about their schools, teachers, and what they are studying. They can also compare and contrast what different states or countries learn about and how the dynamics of the classroom are, whether socially or academically. 

Children may be more inclined to write about their issues if they feel like they are speaking to a peer in a similar situation. They also write about the local weather, who the letter writer lives with, and their favorite things to do at home. This will give the pen pal a good sense of the writer's home life, and they may relate to certain aspects, such as their parents, the number of siblings, or if they share a room. Although pen pals may live in different countries, they may find common ground according to this information. 

"Hearing first-hand stories from an international pen pal can encourage teens to take someone else's perspective and to think outside of themselves," writes Rebecca Fraser-Thill on Very Well Family. "It can also encourage interest in geography, politics, and history, and promote many key skills, including reciprocation, empathy and mutual concern. "