Author: The Conversation

If you could pick one measure to evaluate your health, what would you pick? Blood pressure? Cholesterol? These are commonly measured by your GP, but there is something that is more informative: maximal aerobic capacity, otherwise known as VO₂max. This measure tells you your maximum (max) rate (V) of oxygen (O₂) uptake and use during exercise. The greater this is, the better your health. In fact, VO₂max is the best predictor of your risk, at a given point in time, of getting chronic diseases like heart disease, type 2 diabetes or certain cancers, and the best predictor of your chances of living…

If you have a smartphone, it probably is a significant part of your life, storing appointments and destinations as well as being central to your communications with friends, loved ones and co-workers. Research and investigative reporting continue to reveal the degree to which your smartphone is aware of what you’re up to and where you are – and how much of that information is shared with companies that want to track your every move, hoping to better target you with advertising. Several scholars at U.S. universities have written for The Conversation about how these technologies work, and the privacy problems they raise.…

As people increasingly buy and install smart devices in their homes, all those cheap interconnected devices create new security problems for individuals and society as a whole. The problem is compounded by businesses radically expanding the number of sensors and remote monitors it uses to manage overhead lights in corporate offices and detailed manufacturing processes in factories. Governments, too, are getting into the act – cities, especially, want to use new technologies to improve energy efficiency, reduce traffic congestion and improve water quality. The number of these “internet of things” devices is climbing into the tens of billions. They’re creating an interconnected world with the…

When you’re lost, Siri can be your best friend. But if she can’t retrieve the right address from your contacts, she can drive you crazy. And so it is with the legion of virtual personal assistants that are entering our lives. From Amazon’s Alexa to Google’s Home, people are busy talking to intelligent machines as never before. It’s estimated that more than 60% of internet traffic is now generated by machine-to-machine, and person-to-machine, communication. IT advisory firm Gartner has predicted that by 2020 the average person will be having more conversations with robots than with their partner. (Sometimes we don’t even know we are doing…

If you’ve ever wondered if your phone is spying on you, you’re not alone. One of the most hotly debated topics in technology today is the amount of data that firms surreptitiously gather about us online. You may well have shared the increasingly common experience of feeling creeped out by ads for something you recently discussed in a real life conversation or an online interaction. This kind of experience has led to suggestions that tech firms are secretly recording our private conversations via smartphones or other internet-connected devices such as smart TVs, Amazon Echo or Google Home. Or that they are reading our private messages even…

Technology companies have been pummeled by revelations about how poorly they protect their customers’ personal information, including an in-depth New York Times report detailing the ability of smartphone apps to track users’ locations. Some companies, most notably Apple, have begun promoting the fact that they sell products and services that safeguard consumer privacy. Smartphone users are never asked explicitly if they want to be tracked every moment of each day. But cellular companies, smartphone makers, app developers and social media companies all claim they have users’ permission to conduct near-constant personal surveillance. The underlying problem is that most people don’t understand how tracking really works. The technology companies…

Last February, Cadbury Chocolate fell victim to a hoax. The image below went viral in an Indonesian WhatsApp group called “Viral Media Johor”, and later in a Nigerian group. But the problem that this story and others like it pose is real. Rumours, hoaxes and misinformation find fertile breeding ground on social media. But as Google, Facebook, Twitter and other social media platforms increasingly crack down on misinformation, the purveyors of false stories are seeking refuge on direct messaging apps such as WhatsApp. Obviously, the post was fake news. The man in the image is Aminu Ogwuche, who was arrested on suspicion of involvement with the…

The first few days of 2019 brought remarkable news from outer space. On January 1 NASA’s New Horizons space probe made the most distant planetary flyby ever, and captured images of a small object 4 billion miles away from earth. The following day, China landed its Chang’e 4 rover, named Jade Rabbit 2, on the far side of the moon – another first. This suggests that 2019 will be a big year for all things related to space; a suggestion borne out by developments at the International Astronautical Federation’s International Astronautical Congress which I attended. The event is held each year during the first week…

Have you noticed the increasing number of pop-ups asking you to consent or “agree” when you visit a website? Do you find these annoying and tend to just click accept without reading the policies? So do most people, and here’s why that’s a problem. By “agreeing” to any of these particular policies, you are effectively allowing a website or app to collect various types of data on you that could violate some of your human rights, such as your right to privacy. To control what data the website or app can gather about you, you have to go through the tedious process…

Cast your mind back to the turn of last century. Experts predicted that by now classrooms would no longer feature human teachers, and holographic virtual entities would deliver lessons instead. This certainly hasn’t happened. The closest we have come is group video chat via apps like FaceTime, Zoom or Google Hangouts. But this doesn’t mean holograms aren’t part of our lives – they’re just marketed differently. For the past 20 years, researchers and companies have progressed with a vision of “mixed reality”, where the physical and digital blend together to create seamless, digitally enhanced experiences. Initially limited to research labs and prototypes, we…