SMRTR Science & EngineeringAug 3, 2025Wired

Efforts to Ground Physics in Math Are Opening the Secrets of Time

SMRTR summary

Mathematicians Yu Deng, Zaher Hani, and Xiao Ma have achieved a breakthrough in physics by proving how particle-level equations connect to larger-scale gas behavior, solving part of David Hilbert's century-old challenge to mathematically ground physics. Their work links Newton's laws of particle motion to Boltzmann's statistical equations to Navier-Stokes equations, proving particles rarely recollide and mathematically explaining why time flows in one direction despite reversible particle physics.

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