Friday assorted links

1. Redux of my 2018 post “My Favorite Things Ukraine,” closes with this: “Overall, this is a stunningly impressive list, though there are legitimate questions as to who and what exactly counts as Ukrainian.  They’re still trying to sort that one out, which is part of the problem.”  The comments are interesting too.

2. Is progress in mathematics understudied?

3. “Insurance reduces anxiety and repetitious thoughts related to the mishap; with fewer thoughts about the mishap, its cognitive availability is lower and so it seems less likely to occur.”

4. Using AI to decode pig calls.

5. Why was Norway a welfare state laggard?