skysight-inc/HackerNews huggingface dataset:
We keep mosquitofish. We bought them to release into our pond for this purpose, but realized they would harass our goldfish and that the goldfish probably would do a good enough job at this themselves. So we used them as dither fish for a nervous flowerhorn cichlid, and after he passed they now have the run of a 140 gallon tank to themselves. They spend all their time chasing each other / going after anything that moves so it's no wonder they have such an outsize environmental impact[1]. Ours have lots of hiding places and a huge tank for just a handful of them

Apparently they give live birth, but we've yet to witness it, likely because any babies are immediately eaten -- or because the females are unlikely to give birth in the presence of males (supposedly -- I haven't confirmed this anywhere, just seen it mentioned on various fishkeeping forums).

[1] https://en.wikipedia.org/wiki/Mosquitofish#Environmental_imp...
One thing I found interesting was that Boole’s original algebra was based on AND (×) and XOR (+, exclusive disjunction). In the finite field F2 (i.e. integer arithmetic mod 2), these are multiplication and addition, respectively.

It was later people who rewrote results using AND (∧) and OR (∨, inclusive disjunction) and named this (slightly different) algebra "Boolean algebra". While this has some cute symmetries, the version with XOR is in many ways easier to work with, since it is more compatible with people’s standard expectations for arithmetic (using × and +) on rational numbers. NOT x is also very easy to express: It is just 1 – x (or alternately 1 + x, since x = –x in F2).
Lyft emailed me today and indicated that they’re terminating the old discount plan (universal 15% discount on all rides) in favor of a new one (0% discount on cheapest tier, 5%+ discount otherwise).

I considered this interesting to HN because of the possible implications the discount change could indicate for their financials and overall business health.
Before the Living Computers: Museum in Seattle was closed, they had a working punch. It was cool to make your own.
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I may be wrong about my assessment of the leadership's competence in this case (I'm not, but I can see how you may not be able to know) but that doesn't mean jealousy is the motive. Your skepticism should be equally applied to the psychological motives of the commenters, in my opinion.
Apple is playing coy. Their stance is probably something like "Macs are designed to run macOS... but yeah, this is our general purpose computer line and we can't afford the PR hit we'd get by locking them down. Yet."
Leslie Lamport wrote about it

Simply put, given a continuous function mononically increasing from 0 to 1, given any degree of discernment X there will be some radius interval Y in which the function is closer than X to 1/2. And people won’t be able to tell for a while what’s better.

If you add random perturbations people will still be sitting there for a while figuring it out, because it could go either way.

Like a pencil which is almost perfectly balanced will take a long time to “figure out” which way to fall.

The interesting thing is that even if you had a timer to go off that said “if you haven’t made a decision by time Z, then choose the first one” there is also a nonzero probability that you won’t be able to tell whether you haven’t made a decision! It is also ambiguous. Read the paper… it took me a while to get it as I corresponded w Leslie about it

https://lamport.azurewebsites.net/pubs/buridan.pdf
That sounds like a shit system
US would lose a strategic bridgehead, so it’s not going to ever happen.
Regulator Sympathy for Crypto Evaporates
Its a dichotomy: if you were allowed free-reign, you'd get innovation and arguably both sides (price and performance) as people went off-piste for parts.

You'd also get loss of safety margins, and therefore increased risk and insurance costs on the organisers and teams.

And in the end, it would come back to price of tech wins, once driver effects are discounted.

Some cheap parts are surprisingly good. The assumption you only increase cost by mandating but automatically get "the best" might be undermined. What if there was a sudden surge of surplus high-Q magnets, and your home-made motor had significantly higher torque, for less weight, and a novel wheel mounting? Getting that kind of thing rated would be a 5+ year exercise in some cases.

(I don't follow F1 in any form, but I remember a lot of nonsense around the time ground effect skirts first came on the scene, and again with winglets, and complaints about driver safety effects on speed...)
You can build stuff on your Mac. The code is coming from a FUSE mount, but the builds can run locally.
What does value proposition mean? I’ve heard the term a lot but never understood it.
If the student group wins, Harvard will have to jump through the same hoops to prove they are not discriminating against whites and Asians, as every private company currently has to jump through to prove they are not discriminating against Blacks and Hispanics.
Turbidity is another good strategy with necessary water.
one scenario I don't see covered. I have a project X. Allow me to book a couple hours against the project without deleting it from the to-do list.
> If the answer is unsatisfying, then I had an unarticulated preference and I can just choose the (apparently preferable) alternative.

Then I discover the alternative is unsatisfying as well. Which causes me to spend time trying to understand why.
It's unfortunate that the author mentions Elizabeth Holmes in the same sentence as Musk and Bezos.

Never mind that, Tesla is more revered than Edison because Edison had an army of men [1] working for him and often took credit for their work. Afaik, Tesla invented on his own from the fruits of his amazing brain.

[1] Even Bill Wilson of Alcoholics Anonymous was offered a job by Edison:

"It also led to his first brush with fame when he was featured in a New York Times article discussing a test given by Thomas Edison to prospective employees. Bill Wilson was one of the few applicants to be offered a position with Edison, but for reasons known only to Wilson he opted against taking it"

https://ecommons.luc.edu/cgi/viewcontent.cgi?article=1072&co...
Many coworking spaces - weworks included - have private phone booths. They tend to be really packed, though, which leads to people taking calls in the shared areas.
I’m probably being really negative but that is probably why I’ve never been interested in FE despite being a huge motorsport fan who also weirdly is very anti-car in my daily life. FE just seems so silly and contrived.
A significant fraction of those deaths is intentional suicides. Although if anything this is even more disturbing.
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> So for example, I want to schedule a doctor’s appointment on my personal and have my other calendars mirror that time block, but scrub the details/make it generic. Super specific idea obviously

Actually not that specific at all! I know a lot of people have at least the work/personal schedule split, and personally I have the additional side project one the same as you, which I bet is pretty common among people putting on this very website.

I also know a lot of people have other arrangements they'd like. Partially out trans people jump to mind. And I'd like my personal contacts to know what my side project life is up to but not vice versa, which is probably not standard but I doubt I'm alone.

So I think customizable ways to separate your life and who is able to see it is not really a niche feature at all, and just a commonly missing one.
Last week I talked to an intern looking for a position and a programmer that had their job eliminated. That's two involuntary job hunters more than I've seen in a long time.

I think a recession is here.
My immediate thought is: what the hell is that expensive turbine doing out there in the weather? I would connect up a bunch of these, without turbines, to a culvert back to shore, and a single big turbine there. Supplied vacuum by all of the fixtures together, it runs continuously. The only moving part out in weather then is the valve/door.

There are good economies of scale in turbines: a big one costs a lot less than a bunch of small ones. Running it continuously, not stopping and starting every 10 seconds, should be better for efficiency, and makes rotational inertia work for, not against you.

It is quite surprising to me how so many energy projects admit simple, but likely substantial, improvements on casual inspection.

Another example is buoyancy energy storage (search term "BEST"), where they had a motor-generator screwed down to the sea floor, cranking a huge rack of floats down, and letting it rise to extract power.

It seemed obvious to me that electrical equipment on the sea floor will be super-expensive,where all they need there is a pulley, with the reel, winch, and motor-generator on shore.

Since a pulley is cheap, you can have a whole series of them, each with its own float running back to its own reel. A single winch / motor / generator may be switched between reels via simple clutches. Then your winch can be rated for a not-insane load of one float (say, 250 tons), but you can store as much energy as you have reels and floats for.

The float design is interesting. The BEST paper had air in floats being compressed as the float is cranked down, losing buoyancy as it goes. A hollow concrete sphere in a net bag (to distribute load) would maintain the same buoyancy all the way down.

But another alternative float is a sealed bag or can of lithium-saturated anhydrous ammonia, which has the lowest density of any known liquid, 480 kg/m^3. Kept below 70 meters, it does not need a pressure vessel to keep the ammonia liquified. A ten-meter (nominal) sphere of it pulls at 250 tons.

Sometimes I suspect that designs are too complicated in order to seem more patentable, thus more able to attract venture money, where a simple design might not. There are an astonishing variety of these things under construction in pilot projects, all fiendishly complicated for no apparent technically compelling reason.
The level of market displacement is pretty huge - its not clear to me that its possible for that to happen. The market for vehicles is pretty inelastic, like, you cant grow your way there in an organic way.
> this article claims we tend to continue putting in the effort well past that point.

it's because people have the irrational belief that their thinking and reasoning more about a problem/decision makes their outcome better.

I think the common symptom found in software is design analysis paralysis. A software team end up using tonnes of time fretting about design choices (often as a committee), rather than just use that time to implement one of the designs. The (ir)rational idea that by reasoning about the design up-front, one saves the (potential) time lost in reimplementing a different design in the future!!
If anyone can push back on criminal abuse of card services, its the card service industry.

This is like CLI faking and telephony: the phone company ("TPC") has been very good at pushing back on regulation, SHAKEN/STIR is coming but its a way off.

We all know that of the order 5 agencies do all the dark market card processing in the end. If they want to stop people making $ out of crime, they can, any time they choose for some cost, and consequence. They are happy to decide randomly to withdraw service from OnlyFans accounts, yet want to claim inability to police the CSAM issue? Come on!

I don't entirely dislike this lawsuit. I think the semi-regulated public utility side of international card clearing needs to be talked about more. We depend on this stuff. It's not really a market any more, the HH index would not call this a fiercely competitive space with costs in Mastercard, Visa, JCB tending to a norm.

(they are all immensely profitable, and they make good money out of allowing crime, within limits. Part of paywave being signed out was a shift in risk from the card companies back to consumers, so they now have more ability to avoid the results of lack of card security on the part of consumers. Unrelated to the CSAM issue here, but a sign of their strength)
You can think of it as answering the question, "Why does the humankind need this product to exist?"
They really should start with the celebrities and influencers e.g. Jake Paul who have been profiting by promoting these rug pull schemes to their audiences.

At least it would help set a public example for others.
Reminds me of The Designers Republic: https://www.thedesignersrepublic.com/

They did the design for Wipeout on PlayStation as well as all the artwork for Pop Will Eat Itself
Nomad token bridge drained of $190M in funds in security exploit
Same here - I installed "Distract Me Not" on my Firefox instances and it has been a great improvement.
Because you have small files, you may not benefit as much from this extension as you'll probably be limited by OS-related issues of how fast you can open files. If you could cat them together then you might benefit from this. Also, this is for newline-deliminated json whereas yours looks like a json blob. But ultimately, it'd only take a couple of hours to test this module with the sqlite command line application and get a rough benchmark, which is more reliable than my guess.

On a seperate note, I'm not sure if that data is public, but it makes me a bit uncomfortable to see lat/long on crime data on a public forum.
Going on a tangent here: I wanted to share this article with a friend that doesn't speak English and ran it through Google Translate. It was completely broken with paragraphs in English and others not. I don't remember Google Translate struggling this much with a page. Maybe Substack does crazy HTML things?
I feel like for a very long time, the Right has been the most vocal about personal pride, "law and order," being an upstanding citizen, etc., but at the same time it's the Left that's still hamstringing themselves by trying to apply these ideals to politics.

I thought this was just a US thing, but then I saw the same shit happening during the brexit fiasco. I don't understand it, honestly.
I like this! I have a slightly different one but I'll try yours next time I am out.

Mine is:

'I like being surprised, if you have any love it or hate it "controversial" items I'd like to try that, otherwise surprise me :-)'

Along with a genuinely friendly demeanor it is almost always a delight.

Worst case scenario they just give me the most popular item on the menu, occasionally I get something weird tasting but never bad and always fun.

No menu required.

That's my hack when life is demanding that I make too many decisions and I'd like someone else to be taken care of that at meal time.

(Only when the server and environment doesn't seem soul crushing/crushed, I would never do this at a chotchkie's.)
It will mean that groups who want to see the racial pie chart change will have to dig and do the hard work, getting actually involved in disadvantaged communities instead of just throwing money at government programs that don't seem to be working.
Why someone would want to buy the product. Value is in the eye of the beholder, of course, and it’s not always what the maker expected.
Why? People who pay more into the system should benefit more from it.
If you’re referring to financial cost, it’s not at the expense of thousands, it’s at the expense of millions of diabetics in the US. (1) (2)

Unless of course you mean the expense of thousands of dead or permanently disabled diabetics, that is the correct ballpark! (3)(4)

(1) https://www.diabetes.org/about-us/statistics/about-diabetes

(2) https://www.forbes.com/sites/debgordon/2022/06/20/4-out-of-5...

(3) https://www.cbsnews.com/news/insulin-prices-2019-diabetes-ra...

(4) https://www.reuters.com/world/us/exclusive-us-diabetes-death...
OpenEmbedded: Build framework for embedded Linux
As someone who regularly runs up thousands of tabs, BrainTool has been an absolute blessing for organizing tabs into contexts! Since the tabs list/tree is available in an easily parseable plain text format, it becomes trivially easy to process tabs programmatically.

I strongly encourage anyone who is curious to try it out.
Reading Recommendations for a New VC (2021)
But the original question remains, how do you know that until you have analyzed it?
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Yeah, China seems focused on making actual products people buy for being useful, instead of fake ones (“MVPs”) just to get bought by investors.
So if Asians just don't happen to have the qualities they're looking for in students; say leadership ability for instance, then it will be fine that they are not admitted in numbers that their standardized testing scores would suggest they should be?
Before or after WW3 starts?
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Hey,

I’ve been the founder / CTO of a few tech startups, one exit of about > $40m in 2016. Honestly since that earn out I’ve never really landed anywhere i love. I love working with people, new tools, scaling system but really hate corporate politics. Don’t get me wrong, I’ve excelled in large companies as a senior technologist, i just don’t find it brings me a lot of joy. Maybe the right situation would be different, I’m just yet to find it.

These days people tend to label me as a founder, c or vp level exec, but I'm extremely hands on technical. I pride myself on bridging the gap between the business and the technology implementation.

I recently started a hedge fund with a friend. We raised a small GP round, produced returns north of 15% for our investors on approximately $40m of capital, but i learnt i hate the hedge fund life. It was 24 hr a day work, in a 365 day / year market. A year in i realized this wasn’t for me. I’m leaving to find something more attuned to my interest and the lifestyle i want to live.

I enjoy home renovation projects, piano and hanging with my fiancé and dog in my free time.
It’s a normal GNOME desktop with a stylized penguin wallpaper and a link to IT.
Were that their attitude they’d be doing less to make it possible today.
Well one of the problems is that you're often hiring a CxO to bring characteristics of a bigger company to your smaller company as it grows. For example, if you have a haphazardly grown sales team doing about $10 million in revenue, you might want to bring in someone who has been a Director in a $100m sales org to be your Chief Revenue Officer to bring some of the sales force management and compensation practices that you need to develop as your sales team gets bigger. There's nobody in your organization who really knows that.
It expands beyond just one company’s corporate leadership once you have members who are on multiple boards.

https://en.m.wikipedia.org/wiki/Interlocking_directorate

This also makes it so that they care less about any one particular company failing when they decide to hand out a leadership position to an incompetent buddy
There is no way to deny cookie consent.
What government program is changing the admissions pie chart of Harvard, a private university?
There is something weird going around Stadia, too much FUD being spread

Few years ago I kept seeing articles on The Verge saying cloud gaming is bad, Stadia won't make it, etc

Then Xbox cloud came and surprisingly the tone changed, they ignored Stadia and kept saying "Xbox cloud is the future", despite Stadia having better latency, and better video quality

https://www.youtube.com/watch?v=_-NoFmhqNu4

Market manipulation seems to be a common thing in the US, i wouldn't be surprised if that would be the case here