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Investing is shifting from active stock picking toward passive strategies that track entire markets. Index funds and exchange-traded funds (ETFs) allow investors to buy a broad basket of assets, often at lower cost than traditional managed funds. Companies like BlackRock and Vanguard have driven the expansion of passive investing, making it accessible to both institutions and individuals. Supporters argue that passive investing offers diversification, transparency and consistent performance over time. However, its growth also raises questions. If large amounts of capital flow automatically into major indices, it may influence how markets allocate resources and value companies. There are also concerns…

Debt has long been part of economic systems, but its scale is reaching new levels across governments, businesses and households. Public borrowing expanded significantly during global crises, as countries financed stimulus programmes and economic support. At the same time, higher interest rates are increasing the cost of servicing that debt. For households, mortgages, student loans and credit have become central to financial life, shaping long-term spending and stability. Financial institutions such as International Monetary Fund monitor global debt levels closely, warning that high borrowing can limit flexibility during future economic shocks. Yet debt is not inherently negative. It can support…

Luxury has traditionally been associated with owning rare or expensive objects. Increasingly, it is defined by access to unique experiences. High-end travel, personalised services and exclusive events are becoming central to how wealth and status are expressed. Brands such as Louis Vuitton and Gucci are investing in experiences alongside products, creating immersive environments that extend beyond retail. This shift reflects changing consumer values. Many people prioritise memories, personalisation and time over material accumulation. Social media also plays a role, as experiences are more easily shared and displayed than static possessions. At the same time, experiential luxury raises questions about sustainability…

What was once seen as niche enthusiasm is now a central part of global culture. Fandom — the collective identity built around artists, films, games or ideas — has grown into a powerful social and economic force. Fans today do more than consume content. They create communities, produce their own media, influence trends and even shape the direction of the industries they follow. Platforms such as TikTok and Discord allow fans to organise, share and amplify their voices at scale. This can elevate creators and turn cultural moments into global phenomena almost instantly. However, fandom can also become intense or…

Automation has long been associated with repetitive tasks, particularly in manufacturing. Increasingly, it is expanding into areas that involve judgment and decision-making. Advances in artificial intelligence are enabling systems to analyse data, identify patterns and make recommendations in fields such as finance, healthcare and logistics. Organisations are adopting these tools to improve efficiency, reduce costs and manage complexity. However, the shift raises important questions. When decisions are automated, issues of accountability, transparency and bias become more significant. There are also concerns about employment, as roles that involve analysis or routine decision-making may be affected. Companies such as OpenAI and IBM…

Behind every search, stream and message lies a vast physical system: data centres. These facilities store and process the information that powers modern life, from social media and banking to artificial intelligence and cloud computing. Companies such as Amazon, Microsoft and Google are investing heavily in expanding this infrastructure to meet growing demand. The rise of AI is accelerating the trend. Training and running advanced models requires significant computing power, increasing the need for larger and more energy-intensive facilities. This has raised environmental concerns. Data centres consume large amounts of electricity and water for cooling, prompting efforts to improve efficiency…

Trust has traditionally been built through personal relationships, institutions and reputation over time. Today, it is increasingly mediated by digital systems. Ratings, reviews and algorithmic recommendations now influence decisions about where people shop, eat, travel and work. Platforms such as Uber and Airbnb rely heavily on these systems, allowing strangers to interact based on shared signals of reliability. While this can increase efficiency and access, it also introduces new challenges. Ratings can be biased, manipulated or shaped by factors unrelated to actual quality. There are also broader concerns about how algorithms prioritise information and whether users fully understand how decisions…

In modern society, attention is increasingly treated as something to be captured, measured and monetised. Digital platforms, media companies and advertisers compete for user focus, designing systems that encourage continuous engagement. Notifications, recommendations and personalised feeds are all part of this competition. Companies such as Meta Platforms and Google operate within an economy where attention directly translates into revenue. The result is a constant demand on time and concentration. Many people report difficulty maintaining focus, while workplaces and schools adapt to more fragmented patterns of attention. Some analysts argue that the ability to concentrate may become a new form of…

Artificial intelligence is rapidly transforming how scientists study molecules, particularly proteins — the structures that underpin life. Understanding how proteins fold into three-dimensional shapes has long been one of biology’s central challenges. Accurate predictions are essential for drug development, disease research and biotechnology. Recent advances in AI, including systems like AlphaFold, have dramatically improved scientists’ ability to model these structures. Instead of relying solely on slow and expensive laboratory experiments, researchers can now simulate protein behaviour digitally, speeding up discovery. This shift is already influencing fields such as medicine, where AI-assisted design may help create new therapies more efficiently. However,…

Life on Earth is built from a shared molecular system: 20 amino acids that cells use to construct proteins. Now, scientists are testing how flexible that system really is. Researchers have successfully engineered bacteria to function with just 19 amino acids, removing one component from what has long been considered a universal biological “alphabet”. The achievement suggests that life’s basic rules may be less fixed than previously thought. The work, led by Harris Wang at Columbia University, initially faced major challenges. Early attempts to replace the amino acid isoleucine caused many proteins to fail. Progress became possible with advances in…