9 June 2017:

More good news:

1) Kenny Courser's paper [A bicategory of decorated cospans](https://arxiv.org/abs/1605.08100) got accepted for publication in _Theory and Applications of Categories_!

He had to go through a couple rounds of revisions demanded by the referee. In the last round, the referee demanded that Kenny explain the difference between his use of double categories and Lerman and Spivak's use of double categories to study dynamical systems. Kenny wrote and explanation and sent a new version of his paper to the editor. He didn't hear back for many weeks. Finally, it turned out that the editor had never sent the new version to the referee! When Kenny discovered this, the matter was quickly resolved.

Moral: if you sent an email to a journal editor and don't hear back, it's possible they haven't read your email, or forgot to do anything about it. Don't be too shy to politely ask them what's up.

2) Daniel Cicala's paper on [Categorifying the zx-calculus](https://arxiv.org/abs/1704.07034), rejected by CALCO, was accepted by QPL.

In computer science conference papers are considered more important than papers in journals - the opposite from math. It really helps your career to get papers accepted by important conferences. [CALCO](http://coalg.org/mfps-calco2017/cfp-calco.html) is the Category on Algebra and Coalgebra in Computer Science. [QPL](http://qpl.science.ru.nl/) is Quantum Physics and Logic. Daniel's paper is a good fit for QPL since that conference is organized by people like Bob Coecke and Ross Duncan, who helped develop the zx-calculus (a diagrammatic method for dealing with certain categories that come up in quantum computation). So, if you write any sort of paper on diagrammatic methods for dealing with categories that show up in physics or engineering - signal flow diagrams, bond graphs, electrical circuits, etc. - you should consider submitting it to QPL. It comes around once every summer, but papers can be submitted earlier.

(I helped referee a bunch of papers for QPL, but I'm not allowed to referee papers by my own students.)

3) Daniel Cicala is now at Snowbird, Utah, learning about [homotopy type theory](https://homotopytypetheory.org/2016/10/04/hott-mrc/).

It turns out two of the organizers of this workshop are friends of mine - Mike Shulman and Dan Christensen. Furthermore, they helped me answer a question that came up in a paper Daniel and Kenny are writing: is any functor from a groupoid to itself equivalent to an isofibration? It turns out the answer is yes and that this was not previously known (at least not by them).