Author: The Conversation

South Africa’s Constitutional Court has declared the law which governs the communication surveillance activities of the country’s intelligence community unconstitutional. The case was based on evidence that the state spied on investigative journalist Sam Sole, of amaBhungane Centre for Investigative Journalism, while he was communicating with a source in the National Prosecuting Authority. The judgment is a huge advance for privacy and freedom of expression. It means that rogue spies will be less able to manipulate the process to spy on journalists, lawyers, activists and others purely because they are critical of the state. When they ask a judge for…

Read More

Amazon announced Jeff Bezos is stepping down as CEO almost 27 years after he founded the company to sell books to customers over dial-up modems. Amazon wasn’t the first bookstore to sell online, but it wanted to be “Earth’s biggest.” When it first launched, a bell would ring in the company’s Seattle headquarters every time an order was placed. Within weeks, the bell was ringing so frequently employees had to turn it off. But Bezos set his sights on making it an “everything store.” After achieving dominance in retail, the company would go on to become a sprawling and powerful…

Read More

The term “Industry 4.0” has been used for years to describe the need for societies to adapt their work and productivity to the “4th Industrial Revolution”, in which new technologies bridge the virtual, physical and biological domains. These terms have become so dominant that governments have adopted them into their policies and planning. Against this backdrop it is important to ask whether – and how – the world of science is effectively adapting to an ever more connected and data intensive world. Is there such a thing as “Science 4.0”? What does this mean for society? As scientists who have…

Read More

The economist John Maynard Keynes predicted in 1930 that the amount we work would gradually shrink to as little as 15 hours a week as technology made us more productive. Not only did this not happen, but we also began to spend extra time away from home due to commuting and suburban living patterns, which we often forget are recent historical inventions. However, 2020 has changed all that. In my new history of remote work during COVID-19, I marvel at how much it has shaken up our lives and how much we took for granted. My research also points to…

Read More

The issue of vaccine production has become a topic of hot debate following the approval of treatments for COVID-19. In South Africa angry exchanges have been spurred by the country’s lagging access to COVID-19 vaccines. Generally, vaccines are produced by private companies who sell the vaccine under contracts. In some cases, producers will make provisions for access in particular markets. This is sometimes as a condition for receiving early development funding or for allowing parts of production to occur in a particular country. Some middle-income countries, particularly India, Argentina and Mexico, have sufficient production capacity to be partly indispensable. These…

Read More

It could be argued artificial intelligence (AI) is already the indispensable tool of the 21st century. From helping doctors diagnose and treat patients to rapidly advancing new drug discoveries, it’s our trusted partner in so many ways. Now it has found its way into the once exclusively-human domain of love and relationships. With AI-systems as matchmakers, in the coming decades it may become common to date a personalised avatar. This was explored in the 2014 movie “Her”, in which a writer living in near-future Los Angeles develops affection for an AI system. The sci-fi film won an Academy Award for…

Read More

by Luke Melchiorre Regardless of how Ugandans decide to vote in the January 14 presidential elections, the incumbent Yoweri Museveni will most likely be declared the winner. Museveni has ruled the country for five consecutive terms. He has historically been able to manipulate elections in his favour, because he controls Uganda’s military, judiciary, and Electoral Commission with an iron fist. Throughout this electoral campaign, however, the long-standing Ugandan president has been upstaged by a formidable young challenger: popular musician-turned-parliamentarian Robert Kyagulanyi, aka Bobi Wine. Since being elected as a Member of Parliament in 2017, the 38-year-old leader of the National…

Read More

by Bhaskar Krishnamachari Though you can’t see them, radio waves are all around you all the time, carrying information. For most people, some of those radio waves are Wi-Fi signals. Wi-Fi is the catchy name an industry alliance came up with to market devices that transmit large amounts of data over short distances using radio waves. The letters don’t stand for anything. Wi-Fi, like broadcast radio and cellular telephone signals, is based on scientific discoveries dating back to the late 19th century. When electrons moving through a wire are made to alternate directions periodically, something magical happens. Electrons in another…

Read More

by Forest Agostinelli, University of South Carolina The field of artificial intelligence (AI) has created computers that can drive cars, synthesize chemical compounds, fold proteins and detect high-energy particles at a superhuman level. However, these AI algorithms cannot explain the thought processes behind their decisions. A computer that masters protein folding and also tells researchers more about the rules of biology is much more useful than a computer that folds proteins without explanation. Therefore, AI researchers like me are now turning our efforts toward developing AI algorithms that can explain themselves in a manner that humans can understand. If we…

Read More