That's interesting. I haven't seen this paper before. None of the others I've read before (e.g., from Couder & collaborators on bouncing droplets) feature a f

That's interesting. I haven't seen this paper before. None of the others I've read before (e.g., from Couder & collaborators on bouncing droplets) feature a fluid analog of entanglement. (For anyone interested, an example of a theory that derives Schroedinger from a classical particle interacting with a fluctuating background field can be found here: https://web.math.princeton.edu/~nelson/books/qf.pdf https://web.math.princeton.edu/~nelson/books/qf.pdf .)