Navier-Stokes Solved?

Short news in Nature says there is a claim for one of the Millennial Clay Problems

Possible exact solution to the Navier-Stokes equations by Penny Smith a Lehigh University.
That would be a serious achievement if it holds up to review.
Be interesting to code it up and see if it is stable as well as being a solution.

PS Summary by Christina Sormani at CUNY

here is the arXiv preprint

More on Good Math, Bad Math - as he says, it could be useful.

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The claim is for an *existence* proof, not for the construction of a solution.

Well, once you have an existence proof the rest is just engineering.
I only just heard the paper is withdrawn. Too bad, I was looking forward to reading it...