One of the most rewarding parts of writing for this community is the feedback that I receive from readers. I’ve been inundated with great questions over the past week, and I’ll be engaging with some of them here—in addition to a few observations of my own.

It feels like we’re on the cusp of a changing of the guard among Silicon Valley billionaires. Who in the next generation of tech titans do you think is the most fascinating politically or philanthropically?

For several years I’ve been keeping an eye on Patrick Collison, the 32 year-old C.E.O.of Stripe. Collison isn’t liquid yet, but he and his brother John are looking at a combined net worth north of $20 billion once their payments company goes public. More fascinating, however, is the copycat effect of Collison’s rising profile in Silicon Valley, where a whole crop of civic-minded entrepreneurs who work on topics like climate change and basic science absolutely idolize him.