Viewing profile — cjbprime
cjbprime
HN member- Joined
- Sun, Jan 03, 2010, 3:46 AM UTC
- HN karma
- 11,905
- Public activity
- 2,908 items
- HN profile
- View on Hacker News ↗
About cjbprime
Previously: keybase.io, gittorrent.org at Recurse Center, VP of Engineering at FlightCar (YC W13), Linux kernel SD card subsystem maintainer.
https://printf.net/
[ my public key: https://keybase.io/cjb; my proof: https://keybase.io/cjb/sigs/r1jKbK2XHT3K67jMZN5eZydp5Y3bnwbrv7Eqkm1-wqU ]
Recent public activity
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Comment #49126159
Does it not use Metal, on macOS? Would it be faster if it did?
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Comment #48854250
It's a very conservative warning. The application does not perform writes, so the application doesn't actually wear your SSD at all. The rest is just application-independent genera…
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Comment #48655386
You still have a core misunderstanding. Only one layer of weights is required in memory at a time. A forward pass can be over-simplified as a matrix multiplication of each layer, o…
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Comment #48654354
Both sentences are likely wrong. It's a written lifespan (technically an "erased" one), not a read lifespan. The weights are only needed from disk read-only. And Mac NVMe interface…
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Comment #48642265
I've got access to a 192GB RAM Mac Studio, which is below the stated minimum RAM. Can swapping off fast disk be used to make it work out, especially since it's MoE?
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Comment #48421311
ChatGPT reconstructing idiomatic Python source code from Python bytecode was definitely up there. That is not something humans have written a great deal about online. It requires s…
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Comment #48110311
> If it detected any harmonics it would be too high. I think it's not that simple. A tuner is "hearing" the fundamental and all of the harmonic overtones combined. It has to guess …
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Comment #47844278
Inference (not training) is bottlenecked by memory access speed, not compute. Having special hardware wouldn't make it faster unless you somehow found a faster memory controller th…
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Comment #44544697
I don't agree with the "twice". A frequently performed manipulation like the fuel cutoff (usually performed after landing) collapses down to a single intention that is carried out …
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Comment #44543210
The prelim report states these pilots were indeed breathalyzed before takeoff.
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Comment #44543204
I meant philosophical toggle switches, not physical ones. The gear can go between down and up. The fuel can go between run and cutoff. Given enough practice, the brain takes care o…
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Comment #44540611
Now I'm trying to remember if I've ever picked up my razor and accidentally begun tooth brushing motions with it. Probably! More relevantly, you seem to me to be unduly confident a…
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Comment #44540106
Sometimes? If you have enough altitude to trade for speed then after the cutoff you could glide to a hypothetical miraculously-placed runway right in front of you, vs. having fire …
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Comment #44540085
It's not that rare, and there are institutional factors (such as seeking treatment for psychosis being career-ending for a pilot) that incentivize serious pilot mental health crise…
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Comment #44539968
Not really, though. They're both (retracting the gear, and cutting off fuel) just toggle switches, as far as your brain's conscious mechanisms go. Doing them both on every flight d…
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Comment #44538329
> There is no possible way to confuse these two actions. This is obviously an overstatement. Any two regularly performed actions can be confused. Sometimes (when tired or distracte…
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Comment #44538203
> I wonder if a built in delay would make sense for safety. (Presumably delaying the amount of time before a raging engine fire stops receiving fuel would also have an impact on sa…
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Comment #44103118
It's not that nonsensical. After it's accessed the private repo, it leaks its content back to the attacker via the public repo. But it's really just (more) indirect prompt injectio…
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Comment #44099377
I don't know that ChatGPT's voice mode is using audio as a transformer input directly. It could just be using speech to text (e.g. Whisper) on your input, and then using its text m…
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Comment #44027702
Then the malware would provide that confirmation to the wallet too. Defending yourself from malware running on the same (Windows) machine is mostly impossible.
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Comment #43892884
You should try AI sometime. It's quite good, and can do things (like "analyze these 10000 functions and summarize what you found out about how this binary works, including adding c…
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Comment #43892868
Ghidra's a decompiler and WinDBG is a debugger, so they'd be complementary.
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Comment #43588719
Semiconductor fabs are actually decently large (>20k employee) cities.
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Comment #43586416
It's a British thing -- another example is that Brits would use e.g. "Apple have decided to.." instead of "Apple has decided to.." (for every group of people including "the governm…