Sam Tobin-Hochstadt

Associate Professor, @IULuddy ·
Core Developer, @racketlang ·
Member, @TC39 ·
Handler, @gravemaker_ulti ·
@[email protected]

[Sam Tobin-Hochstadt @samth]

One week with an e-bike and I'm definitely an "e-bike guy" now.

[Sam Tobin-Hochstadt @samth]

@BurnZeZ @kirancodes @maxvonhippel @jessi_cata Yes

[Sam Tobin-Hochstadt @samth]

@BurnZeZ @kirancodes @maxvonhippel @jessi_cata You have been victimized by a trusting trust style attack?

[Sam Tobin-Hochstadt @samth]

@kirancodes @maxvonhippel @BurnZeZ @jessi_cata I think that's right but also the "trust bootstrapping problem" is not a real problem in practice.

[Talia Ringer 🕊🪬 @TaliaRinger]

Where we started (left, 1979) vs. where we are now (right, 2026)

[Sam Tobin-Hochstadt @samth]

@maxvonhippel @ArjunGuha @GeorgePirlea @krismicinski grind is already an SMT solver and is widely used in Lean; I think tools like that are going to be a big part future developments. The Bitter Lesson includes search for a reason.

[Sam Tobin-Hochstadt @samth]

@ArjunGuha @maxvonhippel @GeorgePirlea @krismicinski Obviously you find and fix bugs when verifying, but there are a lot of bugs that need to be fixed first that fuzzing will find.

[Sam Tobin-Hochstadt @samth]

This isn't quite news, but Dukakis losing the kids vote at my elementary school.

[King Abert @Abert_Squirrel]

What is the oldest political news story you can remember? For me it's Joe Biden being selected as Obama's VP.

[Sam Tobin-Hochstadt @samth]

@TheStalwart Isn't the a big confound that companies using Ramp are way more likely to be VC backed?

[Sam Tobin-Hochstadt @samth]

@kirancodes @TaliaRinger "gradual typing"

[Sam Tobin-Hochstadt @samth]

@charliermarsh But proving something much stronger, like "Chrome doesn't leak information from other origins to web pages" will require several more big steps forward.

[Sam Tobin-Hochstadt @samth]

@charliermarsh The most exciting thing is the insight that we can go a long way with just that property -- it's the same insight that makes fuzz testing unreasonably effective, but lifted to formal verification. Probably there are a lot more wins in this direction.

[Sam Tobin-Hochstadt @samth]

The differences between what has been announced in terms of verification and in math, as well as the wildly different reactions from formal verification people compared to mathematicians, should tell you that this is not true at all.

[Jared Duker Lichtman @jdlichtman]

Formal verification of code is isomorphic to the formal verification of math

https://t.co/Vch6Qvq7hN

[Sam Tobin-Hochstadt @samth]

@ArjunGuha @maxvonhippel @GeorgePirlea @krismicinski Because (a) fuzzing is also 0 human effort and (b) proving that things are correct goes better after you remove the bugs.

[Sam Tobin-Hochstadt @samth]

@HerrDreyer @JulesJacobs5 @mathur_umang @AnthropicAI @theoremlabs Indeed. Wir mussen wissen!

[Sam Tobin-Hochstadt @samth]

@JulesJacobs5 @HerrDreyer @mathur_umang @AnthropicAI @theoremlabs I mean, I agree that we can't be sure what the models will be able to do in a couple years. But I think the trajectory of programming is more bullish for people than you're suggesting.

[Sam Tobin-Hochstadt @samth]

@JulesJacobs5 @HerrDreyer @mathur_umang @AnthropicAI @theoremlabs I think understanding means two different things here. Wanting to pay human mathematicians because we want humanity to understand math is different than wanting to pay Derek because understanding eventually leads to Iris.

[Sam Tobin-Hochstadt @samth]

@kirancodes Tell the robots that it renders wrong in Firefox on my phone.

[Sam Tobin-Hochstadt @samth]

@ArjunGuha We should ask @diagram_chaser

[Sam Tobin-Hochstadt @samth]

@kirancodes Are those last 3 really using it in the same sense? "Morally correct" is an idiom that did not originate in that paper.