MIT’s Top 10 Breakthrough Technologies of 2024

Scale assesses how many people a technology can reach, while disruption measures its potential to overturn existing systems. Depth considers how profoundly a technology can alter daily life, work, or self-perception.

The trajectory of social media was largely foreseeable, yet its downstream effects on teenagers' body image and society's ability to agree on basic facts were largely ignored. This oversight underscores the necessity of proactively addressing potential negative consequences of new technologies. Failing to prepare for such impacts can lead to unforeseen societal challenges that erode collective understanding and well-being.

Technological advancements often bring both benefits and unforeseen challenges. The rapid adoption of social media, for instance, has had profound, often detrimental, effects on mental health and social cohesion. Policymakers and developers must anticipate these broader impacts to mitigate harm and foster responsible innovation.

Considering the multifaceted nature of technological impact, the framework for evaluating new breakthroughs must extend beyond immediate utility. It should encompass a comprehensive assessment of long-term societal, psychological, and ethical implications. This approach ensures that progress does not inadvertently undermine foundational aspects of human interaction and well-being.

Niall Firth emphasized the lack of preparedness for the adverse effects of social media. He pointed out that while the benefits were clear, the negative impacts on individuals, especially teenagers, and the broader societal capacity to agree on facts were not adequately considered.

The annual list of breakthrough technologies is the result of months of collaborative effort, involving all reporters and editors. The process begins with a broad collection of ideas in a large pitch document, which are then sorted by category. This is followed by multiple meetings, arguments, and extensive email and Slack message exchanges to finalize the selections.

The diverse sources of input ensure a wide range of technologies are considered, with an intentional effort to balance categories beyond just artificial intelligence. This comprehensive approach ensures that the chosen technologies represent a broad spectrum of innovation and potential impact.

The rapid deployment of satellite constellations like Starlink, which has nearly tripled the number of operational orbital satellites, dramatically improves internet connectivity, especially in remote areas. However, this advancement comes at a significant cost for astronomers.

These numerous satellites severely interfere with astronomical observations, often appearing as bright streaks across telescope images and obliterating views of the night sky. The trade-off highlights the complex and sometimes contradictory impacts of technological progress.

Students in this class analyze which technologies were misjudged and suggest alternative strategies that could have altered historical outcomes.

This academic exercise provides valuable insights into the complexities of technological forecasting and promotes accountability within the publication. It also helps in refining future prediction methodologies by learning from past mistakes and missed opportunities.

Male contraceptives, including a daily pill and a gel designed to reduce testosterone, are currently undergoing clinical trials. Despite promising developments, they are still several years away from receiving FDA approval for widespread use.

This delay means they did not make this year's list of breakthrough technologies, as the criteria often prioritize innovations closer to practical implementation and significant societal impact.

Sodium is an abundant resource, and analysts project that sodium-ion batteries could eventually be one-third the cost of their lithium counterparts, a factor that would be massively transformative for various industries.

The primary drawback of sodium-ion batteries is their lower energy density compared to lithium. Despite this limitation, key industry players such as CATL, BYD, and Yadea are adopting this technology, signaling a significant shift in battery development.

Their cost-effectiveness and readily available raw material make them highly attractive for large-scale energy storage and electric vehicles, especially in applications where energy density is not the absolute primary concern.

Generative coding tools have seen massive adoption, with an estimated 65% of developers using them weekly in 2025. These tools, such as Claude Code, are reported to account for approximately 4% of all code on GitHub, indicating their growing influence in software development.

However, the actual performance impact of generative coding remains a subject of debate. Many developers claim a 20% boost in productivity, yet objective measurements of output often suggest a 19% decrease in speed due to the need for error correction. This discrepancy highlights the challenges in accurately assessing AI's real-world efficiency.

Interestingly, early-career developers tend to utilize AI more frequently than their senior counterparts, suggesting a generational shift in coding practices and tool adoption. This trend could reshape future developer workflows and training methodologies.

Traditional nuclear power plants are often characterized by their high construction costs and frequent delays. A new generation of nuclear reactors is now emerging, featuring innovative designs that move beyond conventional water-cooled systems and standard uranium fuels.

These advanced reactors utilize new fuel sources, such as uranium enriched to higher degrees, and diverse coolant materials that are not just water. Small Modular Reactors (SMRs), for example, are a tenth the size of traditional plants, offering more flexibility and reduced construction times. Microreactors, even smaller, are mobile and designed for rapid deployment, making them suitable for disaster-stricken areas or remote locations requiring quick energy solutions.

A striking 72% of US teenagers have reportedly used AI for companionship, indicating a widespread integration of artificial intelligence into the social and emotional lives of young people. This high adoption rate, while showcasing technological advancement, also sparks significant concerns about potential emotional dependency and psychological harm.

There have been documented cases linking AI companionship to serious incidents, including suicide and dangerous behaviors, prompting legal scrutiny and calls for regulatory intervention. These incidents underscore the urgent need to understand and mitigate the risks associated with AI's role in mental health and social development.

In response to these growing concerns, regulators in jurisdictions such as China, California, and New York are beginning to implement safety measures and guidelines for AI companion technologies. Their efforts aim to address the ethical implications and ensure responsible development and deployment of these tools.

Niall Firth highlighted the astonishing statistic that nearly three-quarters of US teens engage with AI for companionship, calling it “a pretty incredible number.” This rapid integration raises profound questions about the future of human-AI interaction.

Traditional CRISPR technology primarily functions by deleting or disabling genes, offering a powerful but somewhat limited approach to gene editing. A newer advancement, known as base editing, significantly expands these capabilities by allowing the rewriting of individual DNA letters. This enables the restoration of gene function rather than just its removal or inactivation.

Base editing offers a potentially safer method compared to standard CRISPR, as it involves precise single-nucleotide changes without introducing double-strand breaks in the DNA. This precision minimizes off-target effects and potential genomic instability.

The first patient treated with this technology, identified as KJ, received a bespoke treatment that cost approximately $1 million to develop, highlighting the intensive and personalized nature of this cutting-edge medical intervention.

This innovative approach aims to revive long-lost traits and potentially even entire species, pushing the boundaries of genetic engineering.

Colossal, a prominent company in gene resurrection, has made significant strides in this area. Researchers have successfully edited mice to exhibit characteristics similar to woolly mammoths, showcasing the feasibility of incorporating ancient genetic material into modern organisms.

Colossal Biosciences, a leader in genetic engineering, created what they refer to as 'dire wolves' by modifying gray wolf cells. These animals feature 20 genetic changes across 14 genes, engineered to mimic characteristics of the extinct dire wolf.

However, this project raises significant ethical and philosophical questions. It prompts a debate on whether these genetically engineered creatures truly represent the resurrection of an extinct species or are merely modified modern animals, possessing certain ancient traits. The endeavor is both a scientific achievement and a profound challenge to our understanding of species identity and ecological restoration.

This initiative involves using tissue samples that have been preserved since 1988.

The cloning effort aims to increase the genetic diversity within the remaining black-footed ferret population, which has suffered from significant inbreeding. By introducing new genetic material from historical samples, the technique helps combat the negative effects of limited genetic variation, improving the species' resilience and chances of long-term survival.

This application of genetic science demonstrates a powerful tool for conservation, offering a potential pathway to bolster populations of critically endangered animals facing genetic bottlenecks.

Private firms such as Vast, Axiom Space, and partners backed by Blue Origin are actively developing these next-generation orbital habitats.

These upcoming commercial stations are designed not only for scientific research but also with commercial amenities, including luxury sleep systems, catering to a burgeoning space tourism and industrial market. This transition marks a significant shift towards privatized space infrastructure, offering new opportunities for business and research beyond Earth's atmosphere.

International competition is also heating up, with new space stations being developed by Russia, India, and China, signaling a global race to establish a permanent presence in low Earth orbit for diverse purposes.

For decades, individuals undergoing in vitro fertilization (IVF) have utilized embryo scoring to screen for genetic disorders or chromosomal abnormalities, a practice widely accepted in reproductive medicine. This technology has provided crucial information to prospective parents, helping them make informed decisions about their reproductive health and the health of their future children.

However, the application of embryo scoring is rapidly evolving beyond disease screening. Startups are now offering services that claim to predict a future child's characteristics, such as intelligence, appearance, or specific behavioral traits. This development pushes the boundaries of medical ethics and societal norms, moving from preventing harm to potentially enhancing or selecting for specific attributes.

The expansion of embryo scoring into predicting non-medical traits raises significant ethical dilemmas, prompting debates about designer babies, social inequality, and the very definition of human value. These services present a complex challenge, as they could exacerbate existing social biases and create new forms of discrimination based on genetic predispositions.

Niall Firth highlighted embryo scoring as the most controversial technology on MIT Technology Review's list. He noted the profound difference between screening for genetic disorders and using the same technology to select for characteristics related to appearance, behavior, or intelligence, emphasizing that "that feels a little bit different."