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protastus

1,736 karma · joined November 4, 2018

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protastus··on The Tesla Semi from an Insider's View After One Year: "Hot Mess"
It's a prototype at the edge of what state of the art battery technology allows.

Kudos to Tesla for having the guts and endurance to try. This is relevant for Tesla and for the industry.

protastus··on Asahi Linux goes from Apple Silicon port project to macOS bug hunters
Big companies are pathologically inefficient and bureaucratic.

A big part of the reason people are paid multiples of six figures is to put up with an unhealthy amount of stressful bullshit.

protastus··on First 96-Core AMD Zen 4 Threadripper Tests Show Utter Domination over Intel
I have a 16-core Ryzen 7950X that I run in "eco mode 105W". This delivers performance close to an Intel 13900K but at less than half the power. It's also much easier to cool and get a quiet PC without water cooling and enthusiast shenanigans (de-lidding, etc.)

I don't know if the Zen 4 Threadrippers can be similarly run with a power limit. If they can, I'd expect much better efficiency than whatever Intel offers.

This has eco mode benchmarks: https://youtu.be/W6aKQ-eBFk0?si=o8l1qGUhSQKxmY_c

protastus··on Who profits most from America's baffling health-care system?
That usually means the business model is exposed to disruption.

How is this sector siloed against a newcomer that undercuts every incumbent while remaining profitable?

protastus··on A suicide crisis among veterinarians
I have yet to see evidence that it's out of whack. Vets are are doctors, have to employ staff, and have training, processes and tools analogous to human medicine.

There's no vet industrial complex, so no administrative/insurance/legal parasitic overhead like in human medicine (in the US).

protastus··on OpenIPC: Alternative open firmware for your IP camera
The camera manufacturers don't make the silicon and the silicon makers don't care about any specific camera manufacturer.

Not even Google can get Qualcomm to upstream their drivers. Let that sink in. And it's not because of confidential IP, because many of the drivers are already open source.

Silicon vendors could save a lot of time by mainlining their code rather than having hundreds of forks of every library. Security would dramatically improve. OEMs could update their products.

Maybe it will take legislation or a special interpretation of the 2021 executive order on cyber security [1] to force silicon vendors to take this seriously.

[1] https://www.whitehouse.gov/briefing-room/presidential-action...

protastus··on OpenIPC: Alternative open firmware for your IP camera
That's the rotten situation with embedded Linux. Nearly all silicon vendors ship a highly modified kernel with proprietary drivers and firmware. Nothing gets upstreamed. The code quality is low and the changes are not architecturally sound, so patches wouldn't get accepted by OSS maintainers in their current state. Vendors end up with countless forks of the kernel, system libraries and system services (at least one for each SoC), which they don't maintain because it's too much work (of course).

Security in this space is a absolute disaster.

protastus··on FTX "insurance fund" calculated by multiplying trading volume by random number
Also not saying it's illegal.

The non-zero mean and relatively small standard deviation (0.4 sigma) make all the difference here.

I'd say the ethics and legality are entirely determined by how this distribution was determined and if it's consistent with promises to customers.

protastus··on Volkswagen cuts jobs as demand for EVs plunges
Traditional automakers largely got trapped in the innovator's dilemma. China had no attachment to ICE technology and skipped straight to BEV. Dieselgate was a blessing to VW because it forced them to discuss BEVs to save face.

Europe leads the world in legislation and regulation, both good and bad. Their labor laws are the strongest in the world. Manufacturing in Europe can't compete on price, and the price disparity will be significant, so they will regulate and tax imports.

protastus··on $1,599 RTX 4090 Beats $6,800 RTX 6000 Ada in Content Creation
A workload that only needs 24GB of VRAM will be faster on the 4090. It has higher TDP, same die as the RTX 6000 Ada and nearly the same number of cores (the difference being irrelevant).

The price difference is for the VRAM.

protastus··on The way that Jensen Huang runs Nvidia: 40 direct reports, no 1:1s
I believe the idea is that these individuals are expected to develop themselves through a combination of self-awareness, autonomy, ambition and an environment that promotes growth.

Executives are expected to be mature enough to not need hand holding.

protastus··on How to pass the interview for software engineering roles in Big Tech
"Why would you ever put a tenured engineer, writing code for years, sometimes decades, through a 40-minute process writing code in a collaboration doc or a whiteboard…"

This keeps coming up, and I can only assume the author has not interviewed many candidates.

I've interviewed hundreds of candidates. I've lost count of how many tenured engineers I've interviewed who could not write basic code or explain basic programming concepts. Things that a practicing programmer would encounter every week.

A hiring manager naive enough to waive coding tests will almost certainly hire a low performer who will hold back their team.

protastus··on Microsoft is killing WordPad in Windows
Word for Windows 6 was a proper version of Word -- far more capable than Wordpad. An image search will refresh your memory.

Wordpad is very basic in comparison.

protastus··on Shell abandons its plan to offset CO2 emissions
Your analogy with big tobacco is on point.

Big oil and big tobacco share a strategy of promoting false skepticism, shifting blame to consumers, using the legal system to harass and intimidate scientists, and lobbying to get support from elected representatives. Big oil is of course bigger, and the entanglement with politics, jobs and other companies in the private sector is much stronger.

These issues are widely documented, and the books that climate scientist Michael Mann wrote were eye opening to me.

The only sensible exit is to legislate at scale. These companies will not self regulate. The lag between cause and effect makes this extremely dangerous. A heavy carbon tax is an obvious way to do it.

protastus··on Ask vs. Guess Culture
Very interesting framing for tension I experience as a manager, but never saw formalized.

At work, ask culture puts higher burden on managers. Especially when requests cross the line into unreasonable territory, and the manager has to study the problem with objectivity, and politely articulate why the request cannot be granted.

Example: request for time off overlaps with important deliverables due by the requester. In guess culture, the requester studies their schedule and does not make a request if there's a conflict. In ask culture, the requester asks anyway and if the manager approves, they have now entangled the manager into what could be a bad business decision.

protastus··on America’s top environmental groups have lost the plot on climate change
It's not rhetorical. Emissions have to be cut and deadlines need to be set. I am challenging you to provide a proposal, because anyone can be a cynic or a critic.
protastus··on America’s top environmental groups have lost the plot on climate change
You didn't answer the question.
protastus··on America’s top environmental groups have lost the plot on climate change
The author claims that "America's top environmental groups have lost the plot". This is an incredibly serious and broad accusation, and the author is throwing away the baby with the bathwater with a few cherry picked examples.
protastus··on America’s top environmental groups have lost the plot on climate change
https://climatereanalyzer.org/clim/sst_daily/

Imagine you're 15 and look at the graph above. What deadline do you set for humanity to fix the issue?

protastus··on America’s top environmental groups have lost the plot on climate change
Attacking or blaming environmental groups in a time of environmental crisis seems like an absurdly misguided strategy. The author should re-evaluate their priorities.

Oil and gasoline are some of the most subsidized products in history. Too many Americans demand cheap gas, like it's a human right.

If solar had been similarly subsidized over the last 20 years, we'd see solar panels on every other business and house in every state except Alaska.

This is the situation, and environmental groups did not cause it. And they did not pivot towards undermining their own mission at scale, like they're being accused of.

protastus··on Ferromagnetic half levitation of LK-99-like synthetic samples
The SNR of this saga is very low. A speck of something floating under a magnetic field on a blurry video is not proof of room temperature superconductivity. We've seen memes, jokes, shitposting, bravado, Soviet fan fiction, play-by-play updates from non-SMEs cooking stuff under improvised conditions. No actual resistance measurement of LK-99 with a 4 point probe.

If this is real, then discoverers found this in 1999, apparently couldn't synthesize with good yield, couldn't analyze rigorously, sat on the discovery for 24 years, were recently rushed to publish half-baked papers, and are now silent. None of this inspires confidence.

LK-99 could hypothetically be the real deal, and I want to believe, but I'm patiently waiting for people who actually know what they're doing to offer experimental evidence.

protastus··on Andrew McCalip demonstrates synthesis of LK99
Her methods were improvised and lacking, by her own admission. There are several world class labs working on this today. There's basically zero chance a junior researcher doing amateur chemistry in the kitchen is going to outperform the best groups in the world at figuring out how to synthesize this thing with decent yield, and then characterizing it.
protastus··on Stopping at 90%
If you're a researcher from academia applying for a job in my team, the quality of your GitHub repo makes a huge difference in how you are perceived before we even talk to you.

If you believe in your work and would like to see someone build upon the results, having clearly reproducible results also makes all the difference. Most of the time, you won't even know that people are trying out your code/model/whatever, and friction in the onboarding often means that they will move onto something easier.

If you bound the last 10% and avoid scope creep, I am all for investing the time.

protastus··on Oregon decriminalized hard drugs – early results aren’t encouraging
> But what I've seen in San Francisco has made me think differently. Most people who use drugs eventually end up not being able to live like normal adults. And no one willingly goes to get help or treatment.

The U.S. healthcare system is deeply broken, so it's tremendously difficult for someone who is poor and sick/mentally ill/addicted to drugs to regain control of their life. Irrespective of the legal status of hard drugs.

protastus··on Intel returns to profitability after two quarters of losses
The CEO allegedly wants them to be an external foundry. His direct reports may not be as enthusiastic.
protastus··on Cold restart whole system after total outage
> So maybe there is a plan, or maybe they just designed the system in such a way that they could convince themselves that it would not go down unless things were so severe that loss of the phone system would not be your chief worry.

My belief from working in very large companies, and (previously) in mission critical systems is that a clean bootstrap and recovery process is extremely unlikely, almost impossible. Because in complex systems full of legacy parts and people who have long retired, the stars won't align.

The only way to truly know is to design and periodically test for disaster scenarios (emphasis on the plural). But due to the scale in time and space, cost and bureaucracy, this planning and rehearsing is not going to happen with the desired detail and intensity. People do not seriously plan for things that have never happened.

If it does happen, there will be a small group of extremely capable people that will find a way to bootstrap the system. It won't be according to some previously laid out plans -- they will make the plan in real time. They're not famous and probably never will be.

protastus··on My PhD took a long time and there’s no shame in that
The system is the cult of academia, which indoctrinates students to go down the funnel of becoming a tenured professor, even though most won't make it to the end. It hides career alternatives because those in the cult are largely ignorant of them. Interactions with loudmouth professors with big egos reinforce the will to persevere and avoid the shame of quitting the cult.

I encourage every PhD student to get industry internships, one per year. This needs to be commonplace. It shows them an alternative, gives them a dignified exit (whether they graduate or quit), creates heavyweight competition for the professors with big egos, pays students a decent wage for a while, and injects some novelty on both sides.

protastus··on The Bathyscaph Trieste: Technological and Operational Aspects (1962)
The reasonable and ethical engineering approach is to do one's best with models, simulations, first principles analysis and design something that works on paper. And then built prototypes, test the hell out of them. Without people inside. Standardize everything they can about manufacturing. If all looks good, they can operate. Never stop measuring and testing.

The operators decided this was too much work. They gambled and they lost.

protastus··on RIF developer counters Reddit CEO’s claims
> Who would invest in a Reddit IPO now?!

Moreover, what will be the short interest should this company go public?

I become more confident with every week that the CEO is holding back the company. And so is the board by allowing executive decisions and objectively false statements based on ego.

protastus··on Two years of teaching high school CS
I disagree with this interpretation.

If Bill Gates took this advice he wouldn't have dropped out of university to run Microsoft. That's fueled by ambition and initiative, not arrogance.

Arrogance is telling OP or young Bill Gates that they aren't qualified enough to do it.

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