When almost everyone has a mobile phone, why are more than half of Australian homes still paying for a landline (座机)

These days you'd be hard pressed to find anyone in Australia over the age of 15 who doesn't own a mobile phone. In fact plenty of younger kids have one in their pocket. Practically everyone can make and receive calls anywhere, anytime.

Still, 55 percent of Australians have a landline phone at home and only just over a quarter （29%） rely only on their smartphones, according to a survey （调查）.Of those Australians who still have a landline, a third concede that it's not really necessary and they're keeping it as a security blanket —19 percent say they never use it while a further 13 percent keep it in case of emergencies. I think my home falls into that category.

More than half of Australian homes are still choosing to stick with their home phone. Age is naturally a factor （因素）-only 58 percent of Generation Ys still use landlines now and then, compared to 84 percent of Baby Boomers who've perhaps had the same home number for 50 years. Age isn't the only factor; I'd say it's also to do with the makeup of your household.

Generation Xers with young families, like my wife and I, can still find it convenient to have a home phone rather than providing a mobile phone for every family member. That said, to be honest the only people who ever ring our home phone are our Baby Boomers parents, to the point where we play a game and guess who is calling before we pick up the phone （using Caller ID would take the fun out of it）.

How attached are you to your landline? How long until they go the way of gas street lamps and morning milk deliveries?

During an interview for one of my books, my interviewer said something I still think about often. Annoyed by the level of distraction(干扰)in his open office, he said, “That's why I have a membership at the coworking space across the street —so I can focus. "His comment struck me as strange. After all, coworking spaces also typically use an open office layout (布局). But I recently came across a study that shows why his approach works

The researchers examined various levels of noise on participants as they completed tests of creative thinking. They were randomly divided into four groups and exposed to various noise levels in the background, from total silence to 50 decibels(分贝),70 decibels, and 85 decibels. The differences between most of the groups were statistically insignificant; however,the participants in the 70 decibels group—those exposed to a level of noise similar to background chatter in a coffee shop-significantly outperformed the other groups. Since the effects were small, this may suggest that our creative thinking does not differ that much in response to total silence and 85 decibels of background noise.

But since the results at 70 decibels were significant, the study also suggests that the right level of background noise—not too loud and not total silence—may actually improve one's creative thinking ability. The right level of background noise may interrupt our normal patterns of thinking just enough to allow our imaginations to wander, without making it impossible to focus. This kind of "distracted focus" appears to be the best state for working on creative tasks.

So why do so many of us hate our open offices? The problem may be that, in our offices, we can't stop ourselves from getting drawn into others' conversations while we're trying to focus. Indeed, the researchers found that face-to-face interactions and conversations affect the creative process, and yet a coworking space or a coffee shop provides a certain level of noise while also providing freedom from interruptions.

There is something to be said for being a generalist, even if you are a specialist. Knowing a little about a lot of things that interest you can add to the richness of a whole, well-lived life.

Society pushes us to specialize, to become experts. This requires commitment to a particular occupation, branch of study or research. The drawback to being specialists is we often come to know more and more about less and less. There is a great deal of pressure to master one's field. You may pursue training, degrees, or increasing levels of responsibility at work. Then you discover the pressure of having to keep up.

Some people seem willing to work around the clock in their narrow specialty. But such commitment can also weaken a sense of freedom. These specialists could work at the office until ten each night, then look back and realize they would have loved to have gone home and enjoyed the sweetness of their family and friends, or traveled to exciting places, meeting interesting people. Mastering one thing to the exclusion (排除) of others can hold back your true spirit.

Generalists, on the other hand, know a lot about a wide range of subjects and view the whole with all its connections. They are people of ability, talent, and enthusiasm who can bring their broad perspective (视角) into specific fields of expertise (专长). The doctor who is also a poet and philosopher is a superior doctor, one who can give so much more to his patients than just good medical skills.

Things are connected. Let your expertise in one field fuel your passions in all related areas. Some of your interests may not appear to be connected but, once you explore their depths, you discover that they are. My editor Toni, who is also a writer, has edited several history books. She has decided to study Chinese history. Fascinated by the structural beauty of the Forbidden City as a painter, she is equally interested to learn more about Chinese philosophy. "I don't know where it will lead, but I'm excited I'm on this pursuit."

These expansions into new worlds help us by giving us new perspectives. We begin to see the interconnectedness of one thing to another in all aspects of our life, of ourselves and the universe. Develop broad, general knowledge and experience. The universe is all yours to explore and enjoy.