jkachmar

Joined 12 years ago

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309
Submissions
102
Member since
Aug 27
Stability Engineering at Mercury.

Interested in writing safer code with modern tools; particularly interested in C++, Rust, Nix, and Haskell.

Formerly Groq, Hasura, Soostone, Symbiont, WeWork, and NASA’s Wallops Flight Facility.

[Verifying my cryptographic key: openpgp4fpr:0107655cc20afd1a8f3f9872c1782440640bc696]

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Recent submissions

Comment · 4 months ago
it was not (solely) about slaves; this was debated in Congress during the process of drafting the amendment and resoundingly put down by contemporary legislators.

from Justice Jackson’s concurring opinion:

> Senator Edgar Cowan, for example, argued that German immigrants’ children born in Pennsylvania should be citizens, but Chinese immigrants’ children should not—because Germans and Chinese were different. In response, Senator Trumbull emphasized that the law he had drafted drew no such distinctions. Undeterred, Senator Cowan would warn again—this time during debates on the Fourteenth Amendment—that the Citizenship Clause would let Chinese immigrants “overrun” California and “double or treble the population” of that State. Senator John Conness of California, where anti-Chinese sentiment was arguably most pronounced, responded that “the children begotten of Chinese parents in California . . . shall be citizens.” In fact, he said, the Civil Rights Act had already declared “that the children of all parentage whatever . . . should be regarded and treated as citizens of the United States.” No Senator rose to agree with Senator Cowan or dispute what Senator Conness had said. And no Senator said what the principal dissent says today: that the text at issue conferred citizenship only on freed Blacks and those in analogous situations.

- - -

further down, Justice Jackson cites the most forthright example of how blisteringly ahistorical the Republican party’s arguments are on this topic:

> During the ratification debates, Senator Cowan took aim at the Roma people too, characterizing them as undeserving of birthright citizenship because they “wander[ed] in gangs,” “infest[ed] society,” and “impos[ed] upon the simple and weak everywhere.” And again, Senator Conness dismissed Senator Cowan’s prejudices: “The only invasion of Pennsylvania within my recollection was an invasion very much worse and more disastrous to the State, and more to be feared and more feared, than that of Gypsies. It was an invasion of rebels [at Gettysburg].”

Comment · 6 months ago
not speaking in any official capacity, but: we great internal training material courtesy of some very thoughtful folks, and ultimately one hopes that most of the code is going to be pretty straightforward wherever possible.
Comment · 1 year ago
> And the rest of automakers offerings aren’t half as good.

This was true maybe even as recently as 5 years ago, but it certainly isn’t true now.

Tesla, at the top end, hasn’t been an attractive luxury proposition at least since the Hyundai Genesis & Mercedes EVs started rolling out. They had a shot at capturing the mid- to low-end market, but it looks like they’re in the process of blowing that as well.

> Hard to do in times of austerity [..]

The average American’s lifestyle is hardly austere — it _is_ precarious for very many (most?), but I don’t think that’s the same thing.

You can now get refurb EVs (e.g. a Hyundai Ionia) with <50k miles for <$15k, and that’s in a not-inexpensive part of the US (northeast).

Over the course of the next 10 years that used market is going to only grow, and I don’t think it’s unreasonable to expect that a battery swap will be less costly than the sorts of overhauls high-mileage gasoline cars require so there _will_ be a solid used market.

Comment · 1 year ago
Comment · 1 year ago
Comment · 2 years ago
reposting my comment from another time this discussion came up:

"Cosmopolitan has basically always felt like the interesting sort of technical loophole that makes for a fun blog post which is almost guaranteed to make it to the front page of HN (or similar) purely based in ingenuity & dedication to the bit.

as a piece of foundational technology, in the way that `libc` necessarily is, it seems primarily useful for fun toys and small personal projects.

with that context, it always feels a little strange to see it presented as a serious alternative to something like `glibc`, `musl`, or `msvcrt`; it’s a very cute hack, but if i were to find it in something i seriously depend on i think i’d be a little taken aback."

Comment · 2 years ago
i don’t support hardware development directly, but i’m a software infrastructure engineer working adjacent to the teams that do so.

can’t comment on specifics, but imo our hardware team punches above its weight class in terms of # of people and time spent in design.

Comment · 2 years ago
i can't comment about sora specifically, however the architecture can support workloads beyond just LLM inference.

our demo booth at trade shows usually has StyleCLIP up at one point or another to provide an abstract example of this.

disclosure: i work on infrastructure at Groq and am generally interested in hardware architecture and compiler design, however i am not a part of either of those teams :)

Comment · 2 years ago
i live in NYC and have traveled to plenty of other international cities.

none of the things that you're saying are true compared to my experiences (or those of my friends) in any way that i can think of as meaningful.

the only city i've been to that feels like it's captured the same "vibe" as NYC, for me, has been Paris.

Tokyo was more impressive in its sprawl and history (and obviously cleanliness), but there is a sense of Japanese monoculture that saturates everything in a way that is almost tactile. not in a bad way, but definitely such that i felt like something was "missing" during my visit.

Singapore gets really close to the same feeling, but for all of its heterogeneity there's an undercurrent of authoritarian sterility that made it very difficult to feel comfortable (Disneyland with the Death Penalty, indeed).

anyway this is already pretty long winded so i should probably stop talking, but NYC has a lot "going for it" besides the rest of the US just sort of being a suburban hellscape. at some point i'll move out, but living here has been a really comforting reminder that international views such as yours of American cities are incorrect.

Comment · 2 years ago
right now we’re providing this access to public, anonymous users via this demo chat interface as an alpha test.

we’ll be publishing information about API access, and pricing, shortly after the new year.

Comment · 2 years ago
this is running on custom hardware, if you’re curious about the underlying architecture check the publication below.

https://groq.com/wp-content/uploads/2023/05/GroqISCAPaper202...

EDIT: i work at Groq, but i’m commenting in a personal capacity.

happy to answer clarifying questions or forward them along to folks who can :)

Comment · 2 years ago
Comment · 2 years ago
> i, personally, would not accept money from the company actively militarizing the southern US border but that's just me

food for thought, and that was even before they were advertising offensive weapons technologies of this sort.

Comment · 3 years ago
extremely disappointing that y’all needed the venue to impose this decision.

as said by a friend this morning:

> i, personally, would not accept money from the company actively militarizing the southern US border but that's just me

Comment · 3 years ago
fwiw in my experience it's entirely possible to avoid this if you don't submit an application "cold" (i.e. through the careers page), but through a recruiter or referral _IF_ you have a strong portfolio of open source work and/or exposure in technical spaces.

i'm more than happy to do take-home assignments or complete reasonable timed assessments, but i have (politely) refused to complete leetcode-style gotcha screens when they have been presented to me as "just another part of the application process".

idk, though. maybe that's a privileged statement based on my position, but from what i can tell grinding leetcode seems to be much less reliable these days & the toll it takes on a lot of folks is pretty significant.

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