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i_am_jl

1,166 karma · joined July 2, 2021

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i_am_jl··on Porsche's idea for a six-stroke internal combustion engine
Ah you're right, thank you!
i_am_jl··on Porsche's idea for a six-stroke internal combustion engine
>more fuel means less compression is tolerated before knocking

Generally, no.

Knocking happens from pre-detonation, that's usually caused by heat from compression causing the fuel/air mix to ignite before it's triggered by spark.

To avoid this engines will run a fuel/air mix that is not stoicheometrically ideal, to make the mixture less likely to ignite early.

It is safer to run a fuel rich mix than to run a fuel lean mix as it keeps combustion chamber pressures low (unburned fuel takes heat out of the exhaust). It is more economical and more ecologically friendly to run fuel lean since you paid for that unburned fuel and it's kinda gross.

In general, more fuel than ideal means more resistance to knock. But these things are complex.

EDIT: Knocking happens from pre-detonation. Knocking can also happen from predestination, like in the case of turbocharged Subarus.

i_am_jl··on Backlash over Amazon's return to office comes as workers demand higher wages
The chain is a little longer, and a little less intentional, IME.

CRE firm lobbies local politicians that remote work is killing Main Street.

Local politicians attach tax breaks/incentives for companies with office workers.

Companies mandate RTO to save some tax money while unwittingly being a toadie for commercial real estate.

The key difference being that the people mandating RTO aren't biased because of their own investments in CRE.

i_am_jl··on Dynamicland 2024
> if it also existed as a room in something like VRChat or added to people's rooms in a VR passthrough mode

I dunno. Someone in VR can't manipulate the same physical objects that people in the real world can. You are forced to compromise physicality so that VR users aren't second-class users, or you build two different experiences for VR and non-VR users which goes against the idea of a shared experience.

I think what you're describing has value, but I also think you're removing the fundamental piece of what makes this unique and special.

i_am_jl··on How a leading chain of psychiatric hospitals traps patients
I think they all harmed the public.

My point is that it seems that the only circumstances that lead to corporate decision makers being held to account for wrongdoing is if someone can link their wrongdoing to a financial fraud.

i_am_jl··on How a leading chain of psychiatric hospitals traps patients
Plenty of corporate malfeasance ends after the "do a bad" or the "cover it up" steps.
i_am_jl··on How a leading chain of psychiatric hospitals traps patients
I'm not sure those are instances of executives being held to account for harm to the public as much as they're instances of people being punished for stealing money from the wealthy.
i_am_jl··on UK chip giant ARM developing GPU in Israel
Propaganda feels a bit harsh. It's a pro-business article from an Israeli business periodical, so there's definitely bias at play, but I don't think any of the information presented is especially misleading.

The article is pretty clear about the genesis of the project, that the division exists because ARM bought an Israeli company nearly 10 years ago. I'd love to know more about the competitive advantages that basing the company in Israel provides, but I'm not really expecting that from a business mag filler piece.

i_am_jl··on Black Mesa
Likely. Valve has a new game in closed-ish beta right now.
i_am_jl··on Is My Cat a Prisoner?
"I adopted a cat. Then I adopted another cat that my first cat hated. So I seriously considered killing the first cat. Then I realized I could emotionally blackmail my pet sitter into rescuing the second cat, so I didn't kill my first cat."

...what?

i_am_jl··on National Park Service Will Cite AWD Drivers for Driving on 4WD-Only Trails
Not sure about this park, but elsewhere the NPS has made this distinction clear.

Death Valley's map makes clear that a high clearance crossover, high clearance 2WD or high clearance AWD vehicle is one class, and 4WD vehicles are another. See page 2:

https://www.nps.gov/deva/planyourvisit/upload/508-Backcountr...

EDIT: https://www.nps.gov/cany/planyourvisit/maps.htm has a whole lot of maps for the Canyonlands and none of them make this distinction, maybe this isn't as apparent at that park.

i_am_jl··on After 10 years, Yelp gave my app 4 days
"his business is profitable" is a little too close to home.
i_am_jl··on Jeff Bezos' management rules are slowly unraveling inside Amazon
I don't think those are mutually exclusive conclusions.

Tenured employees help maintain culture, but they don't guarantee that it stays static.

Culture developed by the employees who spent their first 5 years growing with the company is not necessarily the same culture developed by those same employees who have stayed in the same role for the last 5 years with a vanishing potential for growth.

i_am_jl··on Researcher finds flaw in a16z website that exposed some company data
>I remember there was an article "the six dumbest ideas in computer security" on HN a while ago, one of those was the mindset that "hacking is cool". I'm reminded a bit of this here.

Half of that post is unhinged nonsense. "Hacking is Cool" is listed right after a rant about pentesting being dumb because your software should just be designed to be secure.

i_am_jl··on Oystercatchers are waging war on NYC's beach drones
Some police forces in the Netherlands were working with anti-drone eagles years ago, though with modern drones I'd be concerned about the eagles.

https://www.youtube.com/watch?v=00szWWrTNnE

i_am_jl··on Dell responds to return-to-office resistance with VPN, badge tracking
Given Dell's executives comments over the past decade on the effectiveness of remote workers, it seems like it would be difficult for them to make the case that remote work is not a reasonable accomodation for a disability affecting mobility.
i_am_jl··on Cold brew coffee in 3 minutes using acoustic cavitation
>I don’t know anyone who’s jumping up and down on the plunger or doing anything more than pressing it slowly.

Also my reaction the first time someone tried to tell me to plunge slower.

>Have to imagine the coarseness/evenness of your grind is a 10x bigger factor in that regard

100%. Plunge speed makes a minor difference at most, and only then when you have a suitably coarse and even grind.

If you want to play with the concept I think the best way is to prep a press, but instead of plunging the filter into the coffee before pouring, press it only to the top of the liquid and pour, allowing gravity to pull coffee through the filter. Pour a small cup like this, then press the rest of the way and pour another cup.

i_am_jl··on Cold brew coffee in 3 minutes using acoustic cavitation
Plunging pushes your coffee through the metal filter. Pushing harder pushes the coffee through the filter with a higher pressure. Higher pressure pushes particles past the filter more easily than lower pressure. Coffee particulate has a tendency to make coffee more bitter.

Anything that gets more small particles past your filter will add to your coffee's bitterness. This can happen when using a ground coffee that has a lot of fine particles, or if you agitate when you pour/plunge.

i_am_jl··on Some colleges will soon charge $100k a year – how did this happen?
There's a difference between "Show us how much you have, we will give you more until you have enough" and "Show me how much you have, we'll raise prices until you can barely afford it with a high interest loan."
i_am_jl··on Amazon ditches 'just walk out' checkouts at its grocery stores
>Dominos had this down pat twenty years ago, how come everything with an app is so much more expensive?

The people making the app need a much bigger cut than Domino's. Domino's cut only needs to be big enough to pay their delivery drivers, they make their money selling pizza and the delivery is just an additional service that drives business.

The app maker needs a cut big enough to pay their delivery driver and also be the main revenue stream for their entire business since they're not making money off the pizza.

i_am_jl··on Man pleads guilty to genetically engineering giant hybrid sheep
The headline is misleading.

He's being charged with violating the Lacey Act which prohibits owning/hunting/trading certain plants or wildlife. Today it's mainly used to punish people for importing non-native species of animals.

I can't know exactly what parts of the Lacey Act he was accused of violating (it's extremely broad), but it would make sense to me that he's being charged because of the unlicensed import of the argali sheep. It's not the cross-breeding that's illegal, it's what he's cross-breeding and how he got it that's illegal.

i_am_jl··on Incorrect Stack Exchange answers make me angry
I feel like the move here is to post your question as a new post, answer your own question, and link to your question/answer in a comment on your answer in the original question.
i_am_jl··on Facial recognition error message on vending machine sparks concern at university
I'm okay with that flavor of "good ads".

I'm fine with a machine taking my observable physical characteristics and using that to select ads for me. I'm also fine with ads that are not so much targeted as self-selected.

It's the use of non-observable, non-public info to build and reference an advertising profile where I start to object. It's creepy, and the ads are somehow less relevant.

i_am_jl··on A former Gizmodo writer changed name to 'Slackbot', stayed undetected for months
Being deceptive about your identity during the commission of a crime is illegal?

If I dress up as a Best Buy employee and drag a television out of a loading dock and into the bed of a truck, that's definitely illegal, but I don't think it's any more illegal than if I did it in jeans and a T-shirt.

i_am_jl··on GIMP 2.99.18: The last development preview before 3.0
Giving someone a nail gun makes them question why they've been banging nails into wood with their forehead for so long.
i_am_jl··on Is something bugging you?
By selling cloud providers the chance to be the only cloud provider supported by Antithesis.
i_am_jl··on A lost hiker ignored rescuers' phone calls, thinking they were spam (2021)
>How do you "glance" at a voicemail?

My carrier does voice-to-text transcription of the message and texts it to me.

i_am_jl··on A lost hiker ignored rescuers' phone calls, thinking they were spam (2021)
>presumably someone close to the hiker who knew their itinerary

I'm not sure what this trailhead is like, but it's not unheard of for someone to call rangers who call SAR for something as simple as a car parked at a trailhead after it's closed.

i_am_jl··on Apple is lobbying against right to repair 6 months after supporting it
I think their concern is that they would no longer purchase used Apple products because they couldn't know whether or not a used phone may have been repaired with worse-than-OEM parts.

I happen to think that's a pretty poor justification for scuttling/kneecapping right to repair, but I wouldn't go as far as to say it changes nothing for them.

i_am_jl··on Apple is lobbying against right to repair 6 months after supporting it
I'm not understanding your point re: cars vs phones.

If we allow 3rd parties to produce parts for cars, why can't they make parts for phones where the stakes are much lower? Perhaps there's a market for low-end replacement parts for phones? There certainly is for car parts.

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