Next to the flashy realm of AI, materials may seem quaint. These days, our lives revolve around the digital world. Money, culture, news, gossip - all of it lives there. Generative artificial intelligence is the biggest story in the world, but could you point to where that technology is physically located? The material world just isn't where the action is.

One of the continuing challenges of Human Computer Interaction research is the full inclusion of people with special needs into the digital world. In particular, this crucial category includes people that experiences some kind of limitation in exploiting traditional information communication channels. One immediately thinks about blind people, and several researches aim at addressing their needs. On the contrary, limitations suffered by deaf people are often underestimated. This often the result of a kind of ignorance or misunderstanding of the real nature of their communication difficulties. This chapter aims at both increasing the awareness of deaf problems in the digital world, and at proposing the project of a comprehensive solution for their better inclusion. As for the former goal, we will provide a bird's-eye presentation of history and evolution of understanding of deafness issues, and of strategies to address them. As for the latter, we will present the design, implementation and evaluation of the first nucleus of a comprehensive digital framework to facilitate the access of deaf people into the digital world.

When you hear the term'dark web,' a hacker in a hoodie, digital drug deals and hitmen for hire are probably what come to mind. Usually, our imaginations cook up scenarios that are a lot more dramatic than reality. But when it comes to this hidden corner of the internet that can only be reached using special software, it's pretty spot on. The sites we all visit every day are just the tip of the iceberg in the digital world. Beneath the surface is a hidden layer that goes un-indexed by search engines - it's called the deep web.

In an increasingly digital world, connectivity is a necessity. Yet, nearly a third of the global population remains offline, unable to access the services vital to participating in our global digital economy and society. The Edison Alliance at the World Economic Forum has worked to change that by delivering digital connectivity and access to financial, healthcare, and education services to those who need them most. Our partnerships with governments, industries, and non-governmental organizations drive lasting systemic change. The World Economic Forum played a pivotal role in launching and guiding the Alliance's work, providing a platform for stakeholders to come together and commit to a vision with actionable ideas and plans.

Recent AI models are surprisingly humanlike in their ability to generate text, audio, and video when prompted. However, so far these algorithms have largely remained relegated to the digital world, rather than the physical, three-dimensional world we live in. In fact, whenever we attempt to apply these models to the real world even the most sophisticated struggle to perform adequately--just think, for instance, of how challenging it has been to develop safe and reliable self-driving cars. While artificially intelligent, not only do these models simply have no grasp of physics but they also often hallucinate, which leads them to make inexplicable mistakes. This story is from the WIRED World in 2025, our annual trends briefing.

Online social media (OSM henceforth) have revolutionized the way we exchange information. From the user's perspective, these digital ecosystems are largely effortless [136], enabling convenient ways of exchanging personal content [1], seeking information [129] and synchronizing with others [37]. This convenience has catalyzed a massive digital shift in social and information exchanges from offline to online settings [136], which has provided novel access to massive amounts of online data regarding human behaviour [141]. Unconstrained by geographical barriers, the massive adoption of social media has given rise to novel phenomena that are absent in in-person interactions, such as the influence of complexity and artificial intelligence. Complexity in social media is strongly related to the motto "more is different" [7]: the idea that the co-occurrence of many, even similar, interactions within the same context can lead to unexpected phenomena. Examples include acts as simple and seemingly insignificant as following another user, or re-sharing content. Taken individually, these actions can be understood in terms of a user's activity, psychology, and engagement [91, 97, 141], but when repeated by vast amounts of users, these actions can determine the unexpected rise

Traditional deep learning often overlooks bytes, the basic units of the digital world, where all forms of information and operations are encoded and manipulated in binary format. Inspired by the success of next token prediction in natural language processing, we introduce bGPT, a model with next byte prediction to simulate the digital world. bGPT matches specialized models in performance across various modalities, including text, audio, and images, and offers new possibilities for predicting, simulating, and diagnosing algorithm or hardware behaviour. It has almost flawlessly replicated the process of converting symbolic music data, achieving a low error rate of 0.0011 bits per byte in converting ABC notation to MIDI format. In addition, bGPT demonstrates exceptional capabilities in simulating CPU behaviour, with an accuracy exceeding 99.99% in executing various operations. Leveraging next byte prediction, models like bGPT can directly learn from vast binary data, effectively simulating the intricate patterns of the digital world.

Zeerak Ahmed has spent years in the U.S., working for some of the world's biggest tech companies. But one thing he has grown frustrated with is how "computing treats non-Latin languages as second class citizens." One such language is his mother tongue, Urdu, the national language and lingua franca of Pakistan, which is also widely spoken in India. Ahmed, who is from Lahore, has had many conversations with his friends and family about the difficulties of trying to use existing Urdu keyboards or read Urdu type. And he has witnessed many young people instead resorting to English or so-called Roman Urdu, using the Latin script to produce a phonetic transliteration, in the absence of a better solution.

Researchers at the Max Planck Institute for Intelligent Systems and the University of Colorado Boulder have developed a soft shape display, a robot that can rapidly and precisely change its surface geometry to interact with objects and liquids, react to human touch, and display letters and numbers – all at the same time. The display demonstrates high performance applications and could appear in the future on the factory floor, in medical laboratories, or in your own home. Imagine an iPad that's more than just an iPad--with a surface that can morph and deform, allowing you to draw 3D designs, create haiku that jump out from the screen and even hold your partner's hand from an ocean away. In a new study published in Nature Communications, they've created a one-of-a-kind shape-shifting display that fits on a card table. The device is made from a 10-by-10 grid of soft robotic "muscles" that can sense outside pressure and pop up to create patterns.

The wireless metaverse will create diverse user experiences at the intersection of the physical, digital, and virtual worlds. These experiences will enable novel interactions between the constituents (e.g., extended reality (XR) users and avatars) of the three worlds. However, remarkably, to date, there is no holistic vision that identifies the full set of metaverse worlds, constituents, and experiences, and the implications of their associated interactions on next-generation communication and computing systems. In this paper, we present a holistic vision of a limitless, wireless metaverse that distills the metaverse into an intersection of seven worlds and experiences that include the: i) physical, digital, and virtual worlds, along with the ii) cyber, extended, live, and parallel experiences. We then articulate how these experiences bring forth interactions between diverse metaverse constituents, namely, a) humans and avatars and b) connected intelligence systems and their digital twins (DTs). Then, we explore the wireless, computing, and artificial intelligence (AI) challenges that must be addressed to establish metaverse-ready networks that support these experiences and interactions. We particularly highlight the need for end-to-end synchronization of DTs, and the role of human-level AI and reasoning abilities for cognitive avatars. Moreover, we articulate a sequel of open questions that should ignite the quest for the future metaverse. We conclude with a set of recommendations to deploy the limitless metaverse over future wireless systems.