We now stand at the threshold of another era of upheaval. Cash is on the way out, and the digital technologies that are replacing it could transform the very nature and capabilities of money. Today, central-bank money serves at once as a unit of account, a medium of exchange, and a store of value. But digital technologies could lead those functions to separate as certain forms of private digital money, including some cryptocurrencies, gain traction. That shift could weaken the dominance of central-bank money and set off another wave of currency competition, one that could have lasting consequences for many countries—particularly those with smaller economies.
In ancient societies, objects such asshells, beads, and stones served as money. The first paper currency appeared in China in the seventh century, in the form of certificates of deposit issued by reputable merchants, who backed the notes’ value with stores of commodities or precious metals. In the 13th century, Kublai Khan introduced the world’s first unbacked paper currency. His kingdom’s bills had value simply because Kublai decreed that everyone in his domain had to accept them for payment on pain of death.
Kublai’s successors were less disciplined than he was in controlling the release of paper currency. Subsequent governments in China and elsewhere gave in to the temptation of printing money recklessly to finance government expenditures. Such wantonness typically leads to surges of inflation or even hyperinflation, which in effect amounts to a precipitous fall in the quantity of goods and services that a given sum of money can buy. This principle is relevant even in modern times. Today, it is trust in a central bank that ensures the widespread acceptance of its notes, but this trust must be maintained through disciplined government policies.
NEW YORK PUBLIC LIBRARY DIGITAL COLLECTIONS; PUBLIC DOMAIN; JEAN-MICHEL MOULLEC FROM VERN SUR SEICHE, (35, BRETAGNE), FRANCE/WIKIMEDIA COMMONS
To many, however, cash now seems largely anachronistic. Literally handling physical money has become less and less common as our smartphones allow us to make payments easily. The way in which people in wealthy countries like the United States and Sweden, as well as inhabitants of poorer countries like India and Kenya, pay for even basic purchases has changed in just a few years. This shift may look like a potential driver of inequality: if cash disappears, one imagines, that could disenfranchise the elderly, the poor, and others at a technological disadvantage. In practice, though, cell phones are nearly at saturation in many countries. And digital money, if implemented correctly, could be a big force of financial inclusion for households with little access to formal banking systems.
Cash still has some life in it. During the covid pandemic, even as contactless payments became more prevalent, the demand for cash surged in major economies including the US, presumably because people viewed it as a safe form of savings. Many states in the US have laws in place to make sure that cash is accepted as a form of payment, something that would protect people who cannot or do not want to pay through other means. But consumers, businesses, and governments have generally welcomed the shift to digital forms of payment, especially as new technologies have made them cheaper and more convenient.
People are gathering in virtual spaces to relax, and even sleep, with their headsets on. VR sleep rooms are becoming popular among people who suffer from insomnia or loneliness, offering cozy enclaves where strangers can safely find relaxation and company—most of the time.
Each VR sleep room is created to induce calm. Some imitate beaches and campsites with bonfires, while others re-create hotel rooms or cabins. Soundtracks vary from relaxing beats to nature sounds to absolute silence, while lighting can range from neon disco balls to pitch-black darkness.
The opportunity to sleep in groups can be particularly appealing to isolated or lonely people who want to feel less alone, and safe enough to fall asleep. The trouble is, what if the experience doesn’t make you feel that way? Read the full story.
—Tanya Basu
Inside the conference where researchers are solving the clean-energy puzzle
There are plenty of tried-and-true solutions that can begin to address climate change right now: wind and solar power are being deployed at massive scales, electric vehicles are coming to the mainstream, and new technologies are helping companies make even fossil-fuel production less polluting.
But as we knock out the easy climate wins, we’ll also need to get creative to tackle harder-to-solve sectors and reach net-zero emissions.
The Advanced Research Projects Agency for Energy (ARPA-E) funds high-risk, high-reward energy research projects, and each year the agency hosts a summit where funding recipients and other researchers and companies in energy can gather to talk about what’s new in the field.
As I listened to presentations, met with researchers, and—especially—wandered around the showcase, I often had a vague feeling of whiplash. Standing at one booth trying to wrap my head around how we might measure carbon stored by plants, I would look over and see another group focused on making nuclear fusion a more practical way to power the world.
There are plenty of tried-and-true solutions that can begin to address climate change right now: wind and solar power are being deployed at massive scales, electric vehicles are coming to the mainstream, and new technologies are helping companies make even fossil-fuel production less polluting. But as we knock out the easy wins, we’ll also need to get creative to tackle harder-to-solve sectors and reach net-zero emissions. Here are a few intriguing projects from the ARPA-E showcase that caught my eye.
Vaporized rocks
“I heard you have rocks here!” I exclaimed as I approached the Quaise Energy station.
Quaise’s booth featured a screen flashing through some fast facts and demonstration videos. And sure enough, laid out on the table were two slabs of rock. They looked a bit worse for wear, each sporting a hole about the size of a quarter in the middle, singed around the edges.
These rocks earned their scorch marks in service of a big goal: making geothermal power possible anywhere. Today, the high temperatures needed to generate electricity using heat from the Earth are only accessible close to the surface in certain places on the planet, like Iceland or the western US.
Geothermal power could in theory be deployed anywhere, if we could drill deep enough. Getting there won’t be easy, though, and could require drilling 20 kilometers (12 miles) beneath the surface. That’s deeper than any oil and gas drilling done today.
Rather than grinding through layers of granite with conventional drilling technology, Quaise plans to get through the more obstinate parts of the Earth’s crust by using high-powered millimeter waves to vaporize rock. (It’s sort of like lasers, but not quite.)
Annika Hauptvogel, head of technology and innovation management at Siemens, describes the industrial metaverse as “immersive, making users feel as if they’re in a real environment; collaborative in real time; open enough for different applications to seamlessly interact; and trusted by the individuals and businesses that participate”—far more than simply a digital world.
The industrial metaverse will revolutionize the way work is done, but it will also unlock significant new value for business and societies. By allowing businesses to model, prototype, and test dozens, hundreds, or millions of design iterations in real time and in an immersive, physics-based environment before committing physical and human resources to a project, industrial metaverse tools will usher in a new era of solving real-world problems digitally.
“The real world is very messy, noisy, and sometimes hard to really understand,” says Danny Lange, senior vice president of artificial intelligence at Unity Technologies, a leading platform for creating and growing real-time 3-D content. “The idea of the industrial metaverse is to create a cleaner connection between the real world and the virtual world, because the virtual world is so much easier and cheaper to work with.”
While real-life applications of the consumer metaverse are still developing, industrial metaverse use cases are purpose-driven, well aligned with real-world problems and business imperatives. The resource efficiencies enabled by industrial metaverse solutions may increase business competitiveness while also continually driving progress toward the sustainability, resilience, decarbonization, and dematerialization goals that are essential to human flourishing.
This report explores what it will take to create the industrial metaverse, its potential impacts on business and society, the challenges ahead, and innovative use cases that will shape the future. Its key findings are as follows:
• The industrial metaverse will bring together the digital and real worlds. It will enable a constant exchange of information, data, and decisions and empower industries to solve extraordinarily complex real-world problems digitally, changing how organizations operate and unlocking significant societal benefits.
• The digital twin is a core metaverse building block. These virtual models simulate real-world objects in detail. The next generation of digital twins will be photorealistic, physics-based, AI-enabled, and linked in metaverse ecosystems.
• The industrial metaverse will transform every industry. Currently existing digital twins illustrate the power and potential of the industrial metaverse to revolutionize design and engineering, testing, operations, and training.