Five ways the universe might end and what that means for our present lives
In short: Cosmologist Katie Mack joins host Debbie Millman to discuss the ultimate fate of the cosmos. From the lingering glow of the Big Bang to the five potential scenarios for the end of time, this conversation explores how contemplating cosmic finality shifts our perspective on existence.
Recorded at TEDNext on November 10, 2025, the discussion bridges the vast scale of the universe with the grounded reality of human experience. Mack details the five theoretical ways the universe could conclude, providing a scientific framework for the end of all things.
Beyond the physics of the cosmos, Mack reflects on her personal life, specifically how the intensity of aerobatic flying serves as a metaphor for staying present. By balancing the study of ancient light with the immediacy of her own experiences, she offers a unique look at how understanding our ultimate cosmic destiny can influence how we live today.
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Sources
- Summary by Intellect · source: A Cosmologist’s Guide to the End of the Universe | Katie Mack and Debbie Millman | TED
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