Physical cash still plays an important role in the financial system, but could it be replaced by a digital alternative? Governments around the world are looking to Central Bank Digital Currencies, but there are concerns around privacy and loss of financial freedom.

Advocates claim drones make war safer for civilians and soldiers by making it more technical and precise. But drones are also being used as a “witness” of conflict by activists keen to tell different stories about warfare and the heavy price often paid by civilians.

Banning books belongs in the dark ages and is anathema to modern liberal democracy, but in the United States there’s a widespread campaign underway to censor what students can read. Also, why is the UN involved in a project to build a floating neighbourhood on the South Korean coast?

Fashion is getting even faster, but there are also efforts underway to rein-in the waste and make fabrics from more environmentally-friendly materials.

As Earth’s upper atmosphere becomes more congested, it’s also becoming more polluted, and the impact could be dire. Also, why doing without could make for a fuller future; and what’s behind China’s ban on really tall buildings?

Pollution has long been seen as a health problem, but increasingly its being redefined as an opportunity cost to both individuals and society -  and as a burden on future generations.

Rare Earths are essential to modern life, but their extraction comes at a price. So, how do we clean-up mining efforts & build a diverse network of suppliers without destroying the environment?

Most of us are healthier, wealthier and better educated than ever before. We have greater access to knowledge and expertise than any previous generation. So, why do humans keep doing stupid things? And why is the world awash with conspiracy? Have we already passed “peak intelligence”? And if so, what can we do to ensure a smarter future?

Responses to climate change are often marked by frustration as much as fear. Those seeking to end our fossil-fuel dependency are increasingly turning to litigation to force the hands of companies and governments - often on human rights grounds. But do the courts have a legitimate role to play in leading the way? Or is this a form of judicial activism?

Stories like opinions have become a necessity of modern life.  Everybody is encouraged to have an opinion and everybody – in the vernacular of countless motivation speakers – is encouraged to be the “hero of their own story”. But are we in danger of making too much of them? If the story becomes the central device for much of our communication, do we risk losing our sense of objective reality?