If you’re a longtime reader, you probably know that our newsroom selects 10 breakthroughs every year that we think will define the future. This group exercise is mostly fun and always engrossing, with plenty of lively discussion along the way, but at times it can also be quite difficult.
The 2026 list will come out on January 12—so stay tuned. In the meantime, we wanted to share some of the technologies from this year’s reject pile, as a window into our decision-making process. These four technologies won’t be on our 2026 list of breakthroughs, but all were closely considered, and we think they’re worth knowing about. Read the full story to learn what they are.
MIT Technology Review Narrated: The quest to find out how our bodies react to extreme temperatures
Scientists hope to prevent deaths from climate change, but heat and cold are more complicated than we thought. Researchers around the world are revising rules about when extremes veer from uncomfortable to deadly. Their findings change how we should think about the limits of hot and cold—and how to survive in a new world.
This is our latest story to be turned into a MIT Technology Review Narrated podcast, which we’re publishing each week on Spotify and Apple Podcasts. Just navigate to MIT Technology Review Narrated on either platform, and follow us to get all our new content as it’s released.
The must-reads