Physics
Turbulence: The Last Classical Mystery
The equations are a century old and we still cannot solve them. Machine learning is changing the terms of the problem.
by Dr. Lena Ortiz, Fluid Dynamics · April 2, 2026 · 10 min read
Turbulence is the embarrassment at the heart of classical physics: equations we have written down precisely and cannot solve, governing a phenomenon we see in every poured cup of coffee.
The difficulty is the cascade — energy flowing across scales from the largest eddies to the smallest, coupling everything to everything.
Learned models now approximate this cascade, not by solving the equations but by absorbing the statistics of countless simulations.
Whether that counts as understanding or merely prediction is a question turbulence has always forced us to ask.