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raisin_churn

571 karma · joined June 6, 2022

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raisin_churn··on Why companies are interested in Myers-Briggs types
The linked article is about the use of Myers-Briggs in a workplace context, and the staggering lack of evidence of its efficacy for making useful predictions in that context. If Myers-Briggs is useful in your marriage, or your local PTA meetings or whatever, maybe there is evidence for its usefulness in that context, I don't know. As "a thing for employers," which is what this thread is about, there is no evidence that MBTI rises above the level of phrenology or other pseudo-scientific claptrap.

Anyways, you're just missing my point. You just don't get what my point is for. You don't understand it either.

raisin_churn··on Why companies are interested in Myers-Briggs types
Indeed, they undermine their own argument that it has utility: "People naturally try to sort themselves into work that they are good at, where how they think works best." So why then would an employer need to know your allegedly accurate MBTI, when your application for the job and presumably effort in developing and maintaining the necessary skills already indicates that you're applying to the work you're good at?
raisin_churn··on Amazon putting a three-day pause on reviews for Rings of Power
As a non-geologist, it seems plausible to me that gold that was somehow subsumed into the mantle in New Zealand could migrate to Iceland in the span of thousands of years. As Sméagol pointed out, though, gold coming up in the magma would be more diffuse and not create an identifiable layer on the surface of the lava rock. You're right, though, he's hardly a reliable narrator when it comes to His Precious, so that could be a misdirect. And perhaps there's some attribute of magically endowed gold that causes it to behave in unexpected ways. I searched Google Scholar, but couldn't find any peer-reviewed studies on the physical properties of magic rings.
raisin_churn··on Weird Al had 100 gigs of RAM
Assuming most people use the combo modem/router (WAP, technically, since this entire thread is an exercise in pedantry) provided by their ISP, this makes sense from a non-technical user's perspective, if Comcast always ships hardware with the latest Wifi spec. Of course, you need a whole mess of asterisks after that, because I don't think I own a single client device with Wifi 6E, plus network contention, time sharing, etc. Gamers should do what I do and plug a wire thingy from their computer to their Wifi thingy.
raisin_churn··on NASA selects SiFive and makes RISC-V the go-to ecosystem for future missions
Criticism that SLS is unfit for the intended mission profile is misguided. SLS never had an intended mission profile. The mandate was always to build a rocket in these places and with these contractors and at fabulous expense, and any notion of what would be done when/if that boondoggle I mean rocket ever flew was the mere coda of an afterthought.
raisin_churn··on Amazon putting a three-day pause on reviews for Rings of Power
Don't be ridiculous. The video narrator specifies that the gold on the basalt must have been present locally at the eruption, but as anyone can tell you who has read the Silmarillion seventeen times and memorized every single historical fact therein (while being unable to, for example, name their legislative representatives), Mount Doom is canonically in New Zealand, thus the gold in Iceland can't be from the One Ring. I give this post a 1/10, it would be a 0/10 but Jeff Bezos is censoring me.
raisin_churn··on Science is political, and that's a bad thing
As a non-professional who attempts to adhere to scientific forms of knowledge, I think this is a far better (and shorter) analysis than the article. The word "politics" has a very ugly connotation right now, and probably for much of history, but at its root, it's the process by which we make decisions as groups of people. Without "politics" we can't maintain social structures bigger than dyads, so we should never neglect politics. If someone is publishing research on a topic that is hotly contested in our society, being ignorant or indifferent to the impact that their publication might have is not a virtue.

That isn't to say scientists should only publish findings that perfectly accord with their political beliefs, but perhaps they could spend more effort trying to present their findings in such a way as to limit the inevitable attempts to draw totally wild conclusions or take them completely out of context. And, for the love of all, don't write abstracts that make it sound like you've made some sort of revolutionary breakthrough or stumbled on hidden fundamental truths! Non-specialists (absolutely including myself) will often read abstracts at best, more likely articles written from other articles written by someone who skimmed the abstract while grinding their proverbial axe. People educated in science are aware of the limitations, non-scientists on the other hand...

raisin_churn··on The Car-Replacement Bicycle (The Bakfiets)
> With three wheels these obviously aren't bicycles.

Perhaps someone Dutch can correct me if I'm wrong, but from my understanding, bakfiets is Dutch for a bin-in-the-front style cargo bicycle (Google translates it as "bin bicycle"), and there is also a company that takes its name from this style of bike and makes cargo bikes and trikes in this bin-in-the-front style. I'm referring to the two-wheeled type, ie a bicycle, and I assume everyone else is, since that's what the video is about.

raisin_churn··on The Car-Replacement Bicycle (The Bakfiets)
It's from Ninebot, a Chinese company that bought Segway a couple years ago. They seem to be one of the biggest e-scooter manufacturers, including many sold under other brand names. I think the model he has is F40.

The biggest drawback he's found is that the top speed of 19mph is a little limiting on the roads with painted-on bike lanes where he rides, some where the speed limit is 35mph so the speed difference is a little uncomfortable. I think that's a result of many cities restricting personal electric vehicles to conform with the 20mph top speed of a class 2 electric bike, so e-scooter makers just impose the same limit. His city bans rental e-scooters, but doesn't regulate personal e-scooters at all, so he may end up selling it and getting a faster one, or just hacking the controller to raise the speed limiter.

raisin_churn··on The Car-Replacement Bicycle (The Bakfiets)
> Most Dutch don't even bother with a bakfiets for children (bakfietsen are actually kind of top of the market and mostly used by more affluent parents). Just a (safe!) seat on the Dutch style rear carrier.

Yes, this seems ideal to me. A bakfiets seems like it wouldn't handle that well, especially around the tight 180 degree corners that many paths near me have. Also they are probably too wide to ride in our narrow bike lanes, especially the two-way cycletracks where it would be a nuisance for cyclists going the opposite direction.

> (The perks of living in the Netherlands I guess.)

Undoubtedly. My city in the US is constantly hailed as one of the most bikeable in the country, which is probably true by many metrics, but I think you'd have to be mad to let a child under, say, 14 years old, ride further than a friend's house a couple blocks away here, and certainly not across any major roads. The actual bike infrastructure, such as it is, is pretty scary for most adults who aren't hardcore cyclists. Well, as a hardcore cyclist, it is often still pretty scary for me, but I'm also a hardcore ideologue so I have to do it. In contrast, in my suburban childhood, it was possible to bike to places miles away safely, though that was only because they had accidentally built sidewalks that nobody ever used, so we just used those as our bike lanes. Here in the city, actual pedestrians are trying to use the too-narrow sidewalks, so they can't be relied on for burgeoning cyclists who aren't yet strong and savvy enough to brave the roads.

raisin_churn··on The Car-Replacement Bicycle (The Bakfiets)
And indeed in my city where bicycle theft is very common, so are smash and grabs and catalytic converter theft against cars with high-value catalytic converters (anything that meets CARB's poorly named Partial Zero Emissions Vehicle standard, so all hybrids, Subarus, and some others).
raisin_churn··on Things people blamed on bicycles
I found it equally bewildering when I heard the claim, but perhaps because gun violence is overwhelmingly perpetrated by young men, and in the neighborhoods most impacted by gun violence, young men are also the overwhelming majority of bicyclists. No idea what causal mechanism the claimant was inferring from this correlation. Indeed, it's a highly localized correlation anyways: in less economically depressed parts of the city, the demographics of bicyclists are much more varied along gender, age, and racial lines.

I think there was also an incident in the last couple years in which a young guy was shot and killed by police after they got a "guy with a gun" call because he was very obviously carrying a handgun while riding a bike around his neighborhood. That was on the other side of town from me, and I don't think a whole lot came of it afterwards, so I might be a little fuzzy on the details.

raisin_churn··on The Car-Replacement Bicycle (The Bakfiets)
If you don't have children and live in a relatively flat city, the car-replacement bicycle is even cheaper: any half-decent used mountain bike off craigslist, throw a pannier rack on the back of it and a pair of pannier bags, and never drive again. I think I'm about $400 deep into mine, including the rack, panniers, decent lock, lights with rechargeable batteries, and tires and tubes for the last 4,000 miles. So, not yet broken even compared to my 50mpg Prius if only taking gas into account, but I'd be way ahead if my wife would agree to sell the car and not have to pay insurance, registration+inspection, etc.

My brother-in-law recently got an electric scooter for his work commute. I did the math, and at current gas prices and electricity prices, it saves him $4 a day in fuel, plus another $10 for parking, plus wear and tear on his high-end sports car. With three days a week in the office, without selling the car, the e-scooter pays for itself in less than four months, and the commute time is the same. And, when he does get in his car, it's not to go sit in traffic going to work, so he actually gets more enjoyment out of his nice car.

raisin_churn··on Things people blamed on bicycles
It's still the bicycle. In my city in just the last year, I've seen bicycling accused of causing gentrification (along with Little Free Libraries), traffic, juvenile delinquency, gun violence, falling tax revenues, poor road maintenance, property tax increases, and undoubtedly some more that I've forgotten.
raisin_churn··on Ask HN: Why are bookmarks second class citizens in browsers?
> This can be easily achieved through folders in a bookmarks toolbar. For example I have a folder called 'News' with my top 4 sites. When I open the browser, I just right-click on the 'News' folder, click on "open all bookmarks" and those sites open on a tab each. One click and half a second... very efficient!

Even more efficient, you can Ctrl left click the bookmark folder, or even more even more efficient, middle click. Of course, this requires you properly curate your bookmark folders, my News folder has some two dozen bookmarks, and I definitely don't want to open all of them. But this "open all" behavior isn't recursive, so you can just put stuff you don't want to open every time in subfolders.

raisin_churn··on Librarian's Letter to Google Security
It is not uncommon for unhoused people to lose all their possessions, so even if purchasing multiple hardware security keys wasn't a huge financial hurdle, the recovery model I use (Yubikey on my keychain, two in my safe, mail one to my parents) falls apart for those on the margins of society. If email is an essential service in modern society, recovering access to it from some first principle of identity is essential. I don't have an easy answer for how to do that, but I also don't have a trillion dollar market cap.
raisin_churn··on Tesla remotely converts battery pack, cutting 1/3 of range
You don't think car makers have a vested interest in there being a robust secondary market for their cars? If I have a choice between a $50k car that will have a $25k resale value after 5 years, and one that will have a $10k resale value, that's a strong incentive to buy the former. That's another $15k in my budget for my next car, and if I liked the last one, there's a good chance that money is going right back to that same manufacturer.
raisin_churn··on How to drive away your best engineers
If MBAs weren't economically efficient, the market wouldn't make so many of them and companies wouldn't pay them so much.
raisin_churn··on When coal first arrived, Americans said 'no thanks'
A significant percentage of single-family and rowhouses in DC are older Preister's, the actually historic ones by about a century. My own house is a couple years newer than his, 1919 I think. I just put up solar panels without any NIMBY nonsense like this. My only regret is that the south-facing roof is in the rear, so it was not economical to plaster the north-facing front roof with panels and thus trigger any passing reactionaries.
raisin_churn··on Greg Robinson fixed NASA’s James Webb Space Telescope, reluctantly
Okay, engineering time costs money. Absolutely staggering amounts of engineering time were spent ensuring that the extremely intricate, highly prone-to-failure deployment process would be successful. With a larger payload diameter, the mirror deployment process could have been dramatically simplified, thus saving some percentage of the staggering amounts of engineering time expended, thus saving some percentage of the billions of dollars spent to get the telescope to the launchpad. I do not care what company produces the launcher with the bigger payload diameter, OP specifically asked about Starship, and the answer is YES, a launcher with a significantly larger payload diameter than what is currently available, like Starship if it is ever successful, would make an undertaking like the JWST easier to design, and thus cheaper to design. I dislike Musk as much as any disinterested party (I'm sure people he's scammed with his "FSD next year" or people he's sexually harassed, and definitely his children dislike him more), but a better launch vehicle WILL make bleeding-edge space missions cheaper, and better. That is wholly unrelated to one obnoxious egomaniac.
raisin_churn··on Greg Robinson fixed NASA’s James Webb Space Telescope, reluctantly
This has nothing to do with Musk. A larger payload fairing diameter means fewer/no elements of the mirror have to be folded up for launch, means reducing or completely avoiding the multi-hundred step deployment procedure, the design of which was both an enormous engineering undertaking and most of the over 300 single-points-of-failure[0] in the final design. It doesn't have to be the SpaceX Starship, but there's no other launch vehicle currently in development with a comparable payload diameter. Since it's a purely hypothetical as the entire design process took place with launching on Ariane 5 in mind, I have no idea what the cost savings would be, but it is self-evident they would be considerable. The thing isn't made of $8B worth of metal, the cost was in engineering it.

[0] https://www.space.com/james-webb-space-telescope-deployment-...

raisin_churn··on Greg Robinson fixed NASA’s James Webb Space Telescope, reluctantly
Part of the huge cost to develop it was getting a mechanism that could deploy the mirror segments into a large enough array with sufficient accuracy, a task that would be dramatically simplified by a a launch platform with a wider fairing and greater mass to the L2 Lagrange point. So yes, if SpaceX Starship was available, it would've saved a ton of money on JWST, albeit mostly by relaxing the design parameters of the telescope rather than through cheaper launch costs.
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