### Applied Category Theory 2019 Talks

#### Posted by John Baez

Applied Category Theory 2019 happened last week! It was very exciting: about 120 people attended, and they’re pushing forward to apply category theory in many different directions. The topics ranged from ultra-abstract to ultra-concrete, sometimes in the same talk.

Now the Applied Category Theory 2019 *school* is about to start. But we shouldn’t let the momentum built up at the conference dissipate.

The talks at ACT2019 are listed above — click for a more readable version. Here you can read what Jules Hedges and I wrote about all those talks:

- Jules Hedges, Applied Category Theory 2019.

I tend to give terse summaries of the talks, with links to the original papers or slides. Jules tends to give his impressions of their overall significance. They’re nicely complementary.

You can also see videos of some talks, created by Jelle Herold with help from Fabrizio Genovese. They’re all here.

## Re: Applied Category Theory 2019 Talks

I like that the project of rederiving quantum theory from a new set of axioms is considered “applied” now — that is a thing I have wondered about, off and on, for several years.