1 . Facebook Is a Big Waster

During the first decade of the 21st century, a popular and new word has come into our vocabulary—Facebook. This is the most popular social networking website on the Internet. The main idea of Facebook is that you can keep in touch with all your friends around the world who have Facebook. You can send messages to your friend’s electronic wall, put up a status saying something like “Going to the mall, I need to get a new pair of shoes” or “it’s finally the weekend!”

In spite of the benefit it does on common people, it is true that this social network is a big waster. There are about 350 million active users on this website and 67% of them are between the ages of 13-25. More than 35 million users update their status every day.     1    

The highest age group who use Facebook are teenagers. Most of them keep the website running whenever they are using the computer. if they aren’t in school or when they aren’t asleep. Facebook is just changing the new generation of youngsters unconsciously. The teenage life is one of the most important stages of life.     2     It is a distraction (分心，注意力分散) to their mind as well. Nowadays, when all their homework and research are on ICT (信息技术) they would easily switch to Facebook just to check if there was anything updated among their friends.

Facebook is also where people can see the gossip among their friends, virtual arguments, relationship status and updates, who is in whose “top friends”, you can become fan of anything, join groups, post pictures and videos, play childish games, invite friends to parties or events and a lot more. Generally, all these would just disturb (扰乱；妨碍) people into living life to the fullest. It’s not just teens who become addicted, even grown-ups do. An average person spends about 55 minutes on Facebook.     3     Technology might be taking over people’s life. Furthermore, people who use Facebook through their mobile phones are 50% more active on Facebook than non-mobile phone users. This shows people using Facebook on their phone s as well as computers just can’t stand being away from the website. Facebook is like crack to some folk.

    4     This would make them think how life is like without saying what’s on their mind to all their friends on the Internet. A break would also make them more active, like socializing in person. This would finally help them focus better in school or in work. Although about 80% of people who take a break would come back to Facebook within days.

7 . Hundreds of scientists, writers and academics sounded a warning to humanity in an open letter published last December: Policymakers and the rest of us must engage openly with the risk of global collapse. Researchers in many areas have projected the widespread collapse as “a credible scenario（情景）this century”.

A survey of scientists found that extreme weather events, food insecurity, and freshwater shortages might create global collapse. Of course, if you are a non-human species, collapse is well underway.

The call for public engagement with the unthinkable is especially germane in this moment of still-uncontrolled pandemic and economic crises in the world’s most technologically advanced nations. Not very long ago, it was also unthinkable that a virus would shut down nations and that safety nets would be proven so disastrously lacking in flexibility.

The international scholars’ warning letter doesn’t say exactly what collapse will look like or when it might happen. Collapseology, the study of collapse, is more concerned with identifying trends and with them the dangers of everyday civilization. Among the signatories（签署者）of the warning was Bob Johnson, the originator of the “ecological footprint” concept, which measures the total amount of environmental input needed to maintain a given lifestyle. With the current footprint of humanity, “it seems that global collapse is certain to happen in some form, possibly within a decade, certainly within this century, ” Johnson said in an email.

Only if we discuss the consequences of our biophysical limits, the December warning letter says, can we have the hope to reduce their “speed, severity and harm”. And yet messengers of the coming disturbance are likely to be ignored. We all want to hope things will turn out fine. As a poet wrote,

Man is a victim of dope（麻醉品）

In the incurable form of hope.

The hundreds of scholars who signed the letter are intent（执着）on quieting hope that ignores preparedness. “Let’s look directly into the issue of collapse, ” they say, “and deal with the terrible possibilities of what we see there to make the best of a troubling future. ”

8 . The problem of robocalls has gotten so bad that many people now refuse to pick up calls from numbers they don’t know. By next year, half of the calls we receive will be scams（欺诈）. We are finally waking up to the severity of the problem by supporting and developing a group of tools, apps and approaches intended to prevent scammers from getting through. Unfortunately, it’s too little, too late. By the time these ＂solutions"（解决方案）become widely available, scammers will have moved onto cleverer means. In the near future, it’s not just going to be the number you see on your screen that will be in doubt. Soon you will also question whether the voice you’re hearing is actually real.

That’s because there are a number of powerful voice manipulation ( 处理 ) and automation technologies that are about to become widely available for anyone to use. At this year’s I/O Conference, a company showed a new voice technology able to produce such a convincing human-sounding voice that it was able to speak to a receptionist and book a reservation without detection.

These developments are likely to make our current problems with robocalls much worse. The reason that robocalls are a headache has less to do with amount than precision. A decade of data breaches（数据侵入）of personal information has led to a situation where scammers can easily learn your mother’s name, and far more. Armed with this knowledge, they’re able to carry out individually targeted campaigns to cheat people. This means, for example, that a scammer could call you from what looks to be a familiar number and talk to you using a voice that sounds exactly like your bank teller’s, tricking you into "confirming" your address, mother’s name, and card number. Scammers follow money, so companies will be the worst hit. A lot of business is still done over the phone, and much of it is based on trust and existing relationships. Voice manipulation technologies may weaken that gradually.

We need to deal with the insecure nature of our telecom networks. Phone carriers and consumers need to work together to find ways of determining and communicating what is real. That might mean either developing a uniform way to mark videos and images, showing when and who they were made by, or abandoning phone calls altogether and moving towards data-based communications — using apps like FaceTime or WhatsApp, which can be tied to your identity.

Credibility is hard to earn but easy to lose, and the problem is only going to get harder from here on out.