Sam Tobin-Hochstadt

@samth.bsky.social

Associate Professor, IU Computer Science · Core Developer, @racketlang.bsky.social · Member, TC39 · Handler, Gravymaker · Bike Advocate, Bloomington IN

I think the SpaceX valuation seems ridiculous, but the reason I invest in index funds is precisely not to make decisions about what individual stocks are a good investment, instead investing in all the big companies. Also, I'm not at all confident that the stock price is going to go down.

ryan cooper@ryanlcooper.com · 2mo ago

"If all goes well for SpaceX next week, Musk could very well be the world’s first trillionaire, at least on paper, thanks to large ownership stakes in two companies that, taken together, make less than zero profit." prospect.org/2026/06/10/e...

New research thread: 1/ Error messages have always been designed, sometimes painstakingly, for humans. But now we have new "readers" for errors: agentic AI. Should this affect what PLs generate? Can we measure this experimentally? We have some preliminary results: ↵

The Ivy+ schools enroll very close to the same share of American 18 year olds they did 40 years ago. The actual drivers here are (a) broader applications (b) better matching (c) hard-to-get-into majors (d) insufficient university growth in California.

Nilo@nilo.bsky.social · 3mo ago

There's some truth to this, but I think there's a general refusal online to acknowledge that there are actually very few spaces at elite American institutions, the admissions process is pretty random, and obviously you can do great in life going to UC Davis or Cal state Fullerton.

The problem with this analysis is that the American constitutional order really does rely on a lack of polarization to function, and especially to function in a way that makes meaningful changes that those of us on the left want This is a bad thing but that and $4 will get you a cup of coffee.

Jake Grumbach@jakemgrumbach.bsky.social · 3mo ago

Given the argument that ended the VRA, I think it’s time liberals did some self reflection about the now decades long obsession with partisan polarization as the problem, as opposed to authoritarianism, extremism, oligarchy, and racism

Obviously the decline in trust in elite institutions has multiple causes, but one of them is just that our institutions have broadly become less trustworthy, and fixing this will require them to change. @chrislhayes.bsky.social wrote a whole book about this.

Mark Copelovitch@mcopelov.bsky.social · 4mo ago

I want to come back to this crucial point from @nickfleisher.bsky.social, with data. If you're going to write a report about "declining trust" in universities, then you better benchmark that to other institutions, & you cannot identify causes of that decline w/o accounting for the broader trend.

I have a particular fondness for Hungary because I spent a formative time studying there. It was just after The Wall came down. I had so many encounters that conveyed a sense of hope for a bright future. I imagine the squares of Budapest feel like that again right now.