In real life, you can—to an exent—choose your community and who you hang out with. Online with social media, that’s much, much harder. This is a good video (“Something Strange Happens When You Trace How Connected We Are”) from Veritasium, and if you’re busy, that link takes you to the section on how the classic Prisoner’s Dilemma works when you add in network effects. Game theory tells us not to feed the trolls.

// 10.03.25

From her remarkable memoirs, the German-Jewish Gluckel of Hameln, writing about her childhood village of Altona sometime in the 17th century:

But great love and a close community spirit reigned among them, and in general they all enjoyed a better life than the richest man today. If a man were worth only 500 Reichsthalers, he could well be satisfied; and everyone was happier with whatever he had than nowadays when even the rich can never get enough.

The notion of the “good old days” surely comes for us all.

// 10.02.25