MIT Tech Review: Top Stories of 2025

by Priyanka Patel

AI’s Growing Footprint, Defining Intelligence, and the Future of Medical Research

As artificial intelligence becomes increasingly integrated into daily life, concerns about its environmental impact, the very definition of the technology, and its potential to revolutionize fields like medicine are coming into sharper focus. Recent investigations and research are shedding light on the complex challenges and opportunities presented by these advancements.

AI’s Energy Consumption Under Scrutiny

The surge in generative AI use, reaching hundreds of millions of users by 2025, sparked a global conversation about its energy demands. Senior reporters James O’Donnell and Casey Crownhart undertook a detailed analysis of AI’s energy use, publishing findings that examined resource consumption down to the level of a single query. This unprecedented level of detail aims to provide a clearer understanding of the energy and water resources AI may require in the years ahead.

The Vital Role of Vitamin D

Beyond the digital realm, researchers are deepening our understanding of the human body. Vitamin D deficiency remains a widespread issue, particularly during winter months when sunlight exposure is limited. While long recognized for its importance in bone health, recent research, as reported by senior reporter Jessica Hamzelou, suggests the “sunshine vitamin” plays a surprisingly significant role in supporting immune systems and maintaining heart health.

Defining Artificial Intelligence: A Persistent Challenge

The question of “What is AI?” continues to be debated. Senior editor Will Douglas Heaven’s comprehensive exploration of the topic, initially published in 2024, resonated with readers throughout the following year. Heaven highlights the lack of consensus surrounding a definitive definition of AI, and explains why this ambiguity is not merely semantic, but has implications for how we critically evaluate the technology.

Ethical Frontiers: “Bodyoids” and the Future of Medicine

Perhaps the most provocative development discussed is the potential for ethically sourced “spare” human bodies to transform medical research. A team of experts at Stanford University proposed the creation of living human bodies devoid of consciousness, awareness, or the capacity to feel pain. These “bodyoids,” they argue, could provide essential biological materials for drug development and transplantation, potentially overcoming critical limitations in current research methods. While recent advances in biotechnology offer a potential pathway to realizing this concept, significant technical challenges and ethical hurdles remain.

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