By mathematically proving how individual molecules create the complex motion of fluids, three mathematicians have illuminated why time can’t flow in reverse.The story <a href="https://www.quantamagazine.org/epic-effort-to-ground-physics-in-math-opens-up-the-secrets-of-time-20250611/">Epic Effort to Ground Physics in Math Opens Up the Secrets of Time</a> first appeared on Quanta Magazine.

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 &lt;p&gt;By mathematically proving how individual molecules create the complex motion of fluids, three mathematicians have illuminated why time can’t flow in reverse.&lt;/p&gt;&lt;p&gt;The story &lt;a href="https://www.quantamagazine.org/epic-effort-to-ground-physics-in-math-opens-up-the-secrets-of-time-20250611/"&gt;&lt;strong&gt;Epic Effort to Ground Physics in Math Opens Up the Secrets of Time&lt;/strong&gt;&lt;/a&gt; first appeared on Quanta Magazine.&lt;/p&gt;
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At the microscopic scale, time is reversible. But when you zoom out, there is no going back. Why is this true?

By mathematically proving how individual molecules create the complex motion of fluids, three mathematicians have illuminated why time can’t flow in reverse.

The story <a href="https://www.quantamagazine.org/epic-effort-to-ground-physics-in-math-opens-up-the-secrets-of-time-20250611/">Epic Effort to Ground Physics in Math Opens Up the Secrets of Time</a> first appeared on Quanta Magazine.

The Quanta Podcast

Audio Edition: Epic Effort to Ground Physics in Math Opens Up the Secrets of Time

Audio Edition: Epic Effort to Ground Physics in Math Opens Up the Secrets of Time

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