[Kevmo]

So, HB and Twiss are working an analogy while these scientists are working with observation?

From the article: “Intriguingly, the trajectories closely match those predicted by an unconventional interpretation of quantum mechanics known as pilot-wave theory, in which each particle has a well-defined trajectory that takes it through one slit while the associated wave passes through both slits.”

[John Locke]

I apologise for an unclear post. No, HB and T did the experiment, with photons of course not baseballs, and the result is essentially as I described. The analogy was mine.

If I'm still not making myself clear, please read the original paper.