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jcampbell1

7,718 karma · joined October 26, 2010

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jcampbell1··on Ask HN: I’m an FCC Commissioner proposing regulation of IoT security updates
I honestly don’t think we need a government solution to this issue. Consumers who want this security can buy from manufacturers with a reputation at stake such as Amazon or Apple. I don’t want your “help”. Let the market sort it out.
jcampbell1··on How to drill your own water well
Many places allow for dual meters: one water meter that is used for irrigation and another for water that ultimately goes for waste treatment. In places with abundant water, e.g. places where this drilling technique would work, the water is typically practically free and the “water bill” is mostly a sewer bill.
jcampbell1··on Tesla, Inc. 8-k filing – CFO leaves Tesla
Dodgy in what way? This kind of thing is where none would do creative accounting. Accountants just propose a plan and get the auditor to sign off on it, or suggest modifications. In the auto business, if the CFO wants to hit a number for the CEO, warranty accounting is the place to play games.
jcampbell1··on Experiments in Making Cocktail Ice
You can pour water straight from the kettle into the trays and cover it.

https://www.dreamstime.com/stock-photo-ice-cubes-image179488...

In that photo I see a few gas bubbles, but it is dominated by radial expansion fractures and cloudy high pressure ice in the center. That ice will crack when put in water. Clear ice does not crack.

jcampbell1··on Experiments in Making Cocktail Ice
Just compare frozen boiled water and aerated tap water. Both will be cloudy when made in a tray and both will be clear when made in an insulated cup. It does make a minor difference, but it is unimportant.

Also notice the radial pattern that the internal fractures take. This is inconsistent with bubbles and perfectly consistent with internal stress due to expansion pressure.

jcampbell1··on Experiments in Making Cocktail Ice
I’ve been making clear ice for a decade. Even gone as far as an aquarium bubbler and nichrome wire setups. What you think are obvious bubbles are not actually bubbles.

Just put a double walled insulated cup in the freezer. The internal stress explanation accounts for 98% of the result when you think through how the crystal growth happened.

jcampbell1··on Experiments in Making Cocktail Ice
That isn’t the issue. The problem is an ice shell initially forms, then the water inside the shell needs to expand as it freezes but it has no where to expand. This creates internal stress and micro fractures and the resulting ice crackles due to internal stress. Clear ice requires a directional freeze.
jcampbell1··on Nuclear Power Is the Answer to Global and Environmental Energy Woes
Solar + battery doesn’t bother anyone. Wind turbines have mild resistance from people who think they are an eyesore or people worried about migratory birds.
jcampbell1··on Johnson and Johnson reaches deal for $8.9B talc settlement
When did HackerNews get so hysterical. The evidence for talc causing ovarian cancer is extremely weak, maybe 5 additional cases per 100,000 women at worst. It makes no damn sense as a cervix only allows anything to head inside about 1 day per month. Are dudes getting testicular cancer from talc powder traveling up their pee hole? Gametes are like stem cells and prone to cancer forming mutations. It seems like all the undersexed white knights are ruling the attitudes of the day.
jcampbell1··on Crypto Faces Legal Reckoning as SEC Prepares Action Against Coinbase
The Supreme Court has gotten way more libertarian recently.
jcampbell1··on Crypto Faces Legal Reckoning as SEC Prepares Action Against Coinbase
King Biden can do this without due process?
jcampbell1··on Growing crops under solar panels
We dedicate 39 million acres to corn ethanol so our gas is 10% ethanol. 15 million acres of panels would supply all of the US energy needs including all current petroleum energy.

1 acre of corn produces 11 million kcal. 1 acre of solar panels produces 300 million kcal.

jcampbell1··on Growing crops under solar panels
So you were thinking about doing a million dollar solar install, but you couldn’t come up with $10k for land to do the install?
jcampbell1··on The decline of net neutrality activism
No, the municipality agreed to terms with internet provider which included no tax financed competition. Then some politician needs to get elected and sells the public on a not possible idea of muni internet.

Sort of like Biden canceling student debt by executive order when the constitution says congress has the power of the purse. You can assign the blame to Biden, Republican AGs, the Supreme Court, or the authors of the constitution. Doesn’t make much difference, so long as the issue is correctly understood. A day in court makes sense.

jcampbell1··on The decline of net neutrality activism
Using power to tax to directly compete with private investments is a slippery slope and rightly deserves a day in court.
jcampbell1··on Nobody needs a faster dishwasher – solve real user needs
Removing phosphates from dishwasher detergent was stupid because phosphates are measured in the discharge water from the waste treatment plants where it is regulated, and they can be dealt with chemically. All removing phosphates did was save a tiny amount of money on water treatment. Zero effect on the environment. Total greenwashing like plastic wish-cycling.

If you want zero effort spotless dishes, just mix STPP in a 1:4 ratio with cheap powdered detergent.

https://www.amazon.com/Sodium-Tripolyphosphate-Super-Cleans-...

jcampbell1··on Charter boat captains don't have to share location with government, court rules
It doesn’t say “annual income”, or “annual revenue”. It is “net income” which is not always well defined for small businesses. It is roughly defined as the amount of money you would expect to make running this operation after paying employees. What is the “net income” of owning a subway sandwich franchise? It is not the same concept as employee pay or revenue.
jcampbell1··on Charter boat captains don't have to share location with government, court rules
It is a seasonal thing to take vacationers fishing. Charge $1000 a trip, maybe fish 80 days a year accounting for weather. After expenses there isn’t much left over. It is a labor of love. How much do you think people who guide people on backpacking camping trips earn?

I have been a mate on charter boats. My pay was $100 plus $100 expected tip. The workday was 14 hours long. Any fish caught couldn’t be sold commercially.

Taking people out fishing is not a lucrative career but it does provide work for people who lost their jobs commercial fishing.

jcampbell1··on As Kenya’s crops fail, a fight over GMO
You don't need patent enforcement for hybrid crops, which is pretty much every seed other than soybeans which is an heirloom crop. Corn has major hybrid vigor, so only a totally ignorant farmer would try to replant harvested corn. Corn seeds are made by crossing two heirloom corn varieties at a seed farm, e.g. Southern Dent is crossed with Northern Flint (both are about 5 feet tall and make small ears), to make hybrid corn which grows about 8 feet tall and has massive ears. When you sell seeds, you don't get access to the heirloom plants needed to make the seed. No need for patents.

With soybeans however, they breed true as heirlooms. The GMO beans were sold with the promise that farmers don't use the crop as seeds. Since everything other than soybeans are hybrids, the issue is largely moot.

jcampbell1··on As Kenya’s crops fail, a fight over GMO
Heterosis.
jcampbell1··on PFAS can suppress white blood cells’ ability to destroy invaders
PFAS is a huge family of long lasting fluorinated chemicals. The ones that are bio-absorbed typically are liquid at normal temperatures. Gasoline and plastic are both hydrocarbons, but gasoline is toxic and long chain polyethylene is not. So we are sort of in this state where some Hacker News savior is shouting “hydrocarbons dangerous!!!”, when the story is more like liquid PFAS is a problem, but Teflon is safe like polyethylene is safe. Don’t drink hexane, but the 200-ane found in polyethylene won’t be absorbed even when you eat it.

Bottom line is that all the liquid PFAS has been pulled from the market. The last thing I have seen was some ski racing wax had these liquid PFAS compounds, and they got fined pretty heavily.

jcampbell1··on A broad-spectrum synthetic antibiotic that does not evoke bacterial resistance
The concept of a “hospital acquired infection” is a drug resistant infection that came from the human petri dishes living in the hospitals taking antibiotics and breeding resistant strains which don’t survive in the wild.

So, yes you have the right idea. There is a general push to not do outpatient procedures in hospitals for this very reason.

jcampbell1··on Cobalt is suddenly abundant
Every prediction in “The Population Bomb” turned out to be wildly incorrect. Simon was consistently right that the human standard of living would increase even as population increased.

The arguments Erlichman made were like: not everyone can have a telephone because there is not enough copper in the Earth’s crust.

jcampbell1··on Gigapresses – the die casts reshaping car manufacturing
Must I explain why people who serve in the US military are much better drivers on average? I’m going to go out on a limb and guess in addition to your perfect driving score, your Tesla is clean as well. I bet you probably agree with a statement like “there is no such thing as an accident”.

Enjoy your cheap car insurance. :)

jcampbell1··on Half of Americans now believe that news organizations deliberately mislead them
I like google news because I can see both right and left takes on stories, and which stories are only covered by one side. It also has international coverage, which is nice for instance where Israeli media had by far the most accurate reporting on the nature of Covid-19.

I use media to find out what America believes, and where it is headed. Your list of sources is going to leave you surprised fairly often. My goal is to not be surprised.

jcampbell1··on Gigapresses – the die casts reshaping car manufacturing
There is a huge incentive misalignment. The customer pays monthly for “insurance” and the moral hazard, the insurance company then pays a repair company, who then pays the OEM for the headlight.

The games all go away when the manufacturer sells the insurance, estimates how safe the driver is with data, and then handles the repairs.

Tesla understands this and sees it as a way to beat the competition on total operating cost for the customer.

jcampbell1··on Gigapresses – the die casts reshaping car manufacturing
It is pretty similar. A bunch of stamped, then bent pieces of sheet metal all welded together isn’t more or less reparable. We are talking about frame components here, and so repairs require using hydraulics to bend the components back to straight’ish and then weld gussets to hold it in place. Regardless of the manufacturing technique, most insurance companies will total the car if these components get bent.
jcampbell1··on How ‘Diversity’ Policing Fails Science
A height capped NBA would be interesting. No more than 30 feet of people on the court. Funny thought exercise.
jcampbell1··on We come to bury ChatGPT, not to praise it
Full disclosure: I work for Google and am a member of the Illuminati. They aren’t necessary because we keep track.

Sincerely,

ChatGPT

jcampbell1··on U.S. military shoots down suspected Chinese surveillance balloon
Unrecognized independence during a civil war and world war isn’t much of a claim. Chiang Kai Shek was adamant it was part of China.

Tibet has 3 million people, most of who are subsistence farmers or nomadic herders. Comparisons with Taiwan are a bit much.

I get that the Dali Lama is a really nice guy, but even he admits no one in Tibet gives a shit about him and becoming a feudal lord via picking objects as a child is a bit nuts.

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