Another millenium problem may have been solved

S3D writes: After recent verification of the proof of the Poincaré conjecture another Clay Institute's Millenium Problem may have been solved. This one is about existance of the solution of the Navier-Stokes equations under physically reasonable conditions. Navier-Stocks equations describe the motion of fluid substances such as liquids and gases. Penny Smith posted an Arxiv paper Immortal Smooth Solution of the Three Space Dimensional Navier-Stokes System which prove existance of such solutions