How long will it take to solve the 5 big physics problems?

Progress in the foundations of physics is moving slowly. And yet it moves. Today I look at the five biggest problems in physics, what their status is, and how long it will take to solve them: quantum gravity, dark matter, dark energy, the origin of the universe, and a theory of everything.
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Published on October 03, 2025 08:00
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Sabine Hossenfelder's Blog

Sabine Hossenfelder
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