skysight-inc/HackerNews huggingface dataset:
Any user database is massively more valuable with verified phone numbers.

Even simple chat apps now require personally identifiable information to use.
It probably decomposes before it melts, it’s a very fragile molecule.

A more reasonable assumption is that it’s a saturated solution at NTP but that’s still quite an assumption.
Everything Tania Rascia learnt and built in 2019
Ah, sorry, I misread you. Fair enough, raise to the level you feel is reasonable for your field. I just picked a number that I think is about right for people like me that don't code much.

I am also thinking more "angel+bootstrap+grant" funded startups rather than people already past a Series A; if there's 10 employees with a decent runway the calculation changes a lot versus 3 people getting something off the ground. I think the latter is more typical of a startup for the first several years.
I mean you can move the goal posts here... yes a 401k is risky.
Pickles are literally pickled, that's a food preservation method.
Brilliant. Now let's force the governments to put in place the right incentives. How do we do that?
Oh, you kids!

My XT had an 8088 @ ~4mhz in it, and we pushed it uphill to school both ways, in the snow!

It was multi-functional though. The power supply was inefficient enough to heat the room, while simultaneously being heavy enough to bludgeon large creatures for sustenance.

Something inside me misses the radiant heat, sitting here on a cold day with my chilly metallic laptop.
Please don't be mean about people submitting a video like that. Your comment is a mean sandwich: the filling is great information but the slices at the ends are not in keeping with the spirit of this site. That's actually more important, because it relates to the long-term survival of the community.

https://news.ycombinator.com/newsguidelines.html
Disconnecting the Russian ISP to the German one doesn't disconnect the leased line internal to Globocorps intranet which connects the Gobalcorp intranets in Russia and Germany.
Sure, and nowadays any big science project has hundreds if not millions of "spies". You, too, can dig into the data and methods of many such experiments, no matter what country you liv in.
As a bilingual, found that one really nice.

(minor nitpick: should be "la pub")
Even a company which can go better than ramen profitable with the first sale still has risk in the expenses of closing the first sale.
Did they tell you exactly where it blew up? Then it might be fair, 2 pages is not that big. Though you'd still be at quite a disadvantage compared to someone who spent a lot of time designing the thing.

I gotta say though, if they themselves designed this board that promptly blew up, perhaps they should recalibrate their expectations for EEs.
But also most of the billboards are ads for cultural events, theatre, city-organised events, museums etc. I quite like that actually, where else would I find about some shows or things to do.
This is too complicated and I'm not convinced, but the research paper has more details that make more sense that the short press release https://www.frontiersin.org/articles/10.3389/fenrg.2019.0014...

They don't use the collected CO2 to make diesel fuel, they make methane. Some trucks may use methane as fuel.

IIUC they don't expect every gas station to have a converted from CO2 to fuel, but to have the conversion in the operational bases of the trucks, or collect it and send it to a specialized facility.

They use the heat from the exhaust gases to power the device, the calculations are in the paper.

They say that in other projects, they use the same heat of the exhaust gases to improve the efficiency of the fuel in a 10%. So this is not totally "free".

How does this compare to releasing the CO2 (and getting a 10% of efficiency) and collecting the CO2 from the air in a central location?

How does this compare to using Hydrogen as fuel? I guess the difference is that most of this technology is buildable now, but Hydrogen storage is too difficult for now.

How does this compare with a electric truck? I guess this system gives more autonomy, but all the chemical reactions to convert the CO2 to methane are less efficient that good batteries.
Advanced Systems Integration Lab
I think that's their point? 1 Gig of memory for a java app is like 5000 sq ft for four people.
I had issues with performance with RAW images in Darktable, plus some of the controls take a bit to get use to. I've done full workflows in both.

I'll have to try out this release.
Let’s wait to see if it actually works before we start threatening to put people in prison for not using it.
On the other hand, being forced to write something up gives you extra time to think about what you're about to do. I've had many experiences when I was about to commit what I thought was a trivial change to the code, but then suddenly realized that it was going to break something.
AI winters are caused because people keep thinking the effort required to achieve some improvement is linear instead of exponential.
I usually have two or three USB to serial converters plugged into my computer at work at any time. I expect most embedded people would do similar (or use serial console servers over a network).
If I was a Java person, I would definitely want to hand out Java Card business cards.

I wonder what would be involved in getting Java Card business cards?
a dark pattern because while it's not actually required it might as well be, their 'account locked' email conveniently leaves out that you can simply email them and have them re-enable the account without a phone number.

that email for the curious:

Hello,

Your account appears to have exhibited automated behavior that violates the Twitter Rules: https://support.twitter.com/articles/18311.

In order to continue safely using Twitter, please follow these steps:

1. Log in to your account on the web or open your Twitter app (iOS or Android).
2. You’ll see a prompt letting you know your account has been locked. Click or tap “Start”.
3. Select your country/region from the drop down menu, and then enter your phone number.
4. Click “Send code” and Twitter will send you a text message with a confirmation code (note that your standard message rates may apply).
5. Enter the code you received in the “Your code” box and click “Submit”.
6. You will see a confirmation message that your account is now unlocked.

Once you confirm your identity, it may take up to a few minutes for your account to be unlocked.

If you’re still experiencing an issue after confirming your identity, please reply to this message and provide us with specific details of the problem you're experiencing. We’ll do our best to help!

Thanks,

Twitter Support

If you reply to this saying you don't have a phone they will re-enable your account but there's no mention of that or "click here to verify account" option.
I’m bootstrapping my third company[1]. I sold the previous two.

I’m surprised my approach wasn’t mentioned: bootstrap with consulting revenue. It’s not novel (it’s how 37Signals bootstrapped Basecamp back in the day).

The ideal way is to provide a service that aligns with the product so you can deliver under the same brand.

In my case I’ve consulted as a fractional Product lead[2] since 2007 to bootstrap my product businesses. Consulting has allowed me to support my family and provided as much runway as necessary before the bootstrapped business could support me full time.

One criticism of this part-time consulting approach is that it distracts from the product. This is not true if you’re delivering a service that doesn’t compliment the business.

But ironically probably more than half the founders i know are in permanent fundraising mode for companies that probably shouldn’t have raised in the first place. I look at consulting as a higher probability form of fundraising and see time spent on it as little different than fundraising for the “traditional” angel or venture funded company.

1- my current company is https://www.savio.io

2- i do product management consulting through https://www.reemer.com
In theory yes but I think you need to compile it yourself.
I’ve pretty much given up on working as a coder, as it seems too hostile to side endeavors. From manager squeezing time, to contracts squeezing IP, it creates a fearful mentality. Working as a laborer not touching computers feels like the way. As a bonus, I barely have to go to the gym to stay ripped. My phone never rings and everything I touch is mine. I worked in SV startups and corps for some years, always felt too risky to work on the side if I wasn’t sleeping or getting drunk. I’m not sure what I’m founding yet and have no pressure, I just work for hours a day on whatever if I don’t have a job scheduled. Where’s my business co-founder? Email in profile.
Traditionally you don't add preservative, you ferment the mixture (though without the sugar). This has the advantage of producing more complex flavours but it's more expensive to manufacture because it takes longer. Or you can do it yourself. I make sauerkraut and it is very straightforward.
Show HN: Planorio, a booking management system
Hello! For the last year I've been working on a side project, a booking management system. Among others, it allows anyone who owns a business that accepts bookings to manage them, to communicate with customers, to easily create a personalized website or to embed a calendar widget on any existing website.

Link: https://www.planorio.com

There is still a long way to go, but I feel that now it is ready for some very direct feedback. :)

It mainly consists of an Angular frontend, a backend written in Node.js and some small tools written in PHP and Kotlin. I also created a hybrid mobile application in Ionic.

Thanks in advance to everyone who takes a look at it!
> I would understand if the author's speech was unintelligible but it wasn't.

Don't assume that because you can understand it, everyone can. I can understand several accents that most people struggle with, and I struggle a lot with a few accents that are fairly common. It's to do with exposure more than anything IMO.

I'm not out there leaving one star reviews, but I will drop a course in a heartbeat if the instructor has an accent that's difficult for me. I'm there to learn and barriers to that outside of the actual learning process are not worth my time.
Any chance you can expand on what you mean regarding bilevel? Is it covered in 304?

This reminded me I want to pick up MetaPost, and the graphics it generates seem quite nice. Just not good for a graphics pipeline?
https://en.wikipedia.org/wiki/Electrochemical_reduction_of_c...
laughs in 6502
dances in 68k
cries in 486
While I don't think this is the case here, it's super interesting that leaving in disgrace can be a valid financial exit strategy. The founder and (ex) CEO of a company is able to sell 100% of their stock without causing a panic, under the condition there is another story which justifies it.

Suppose you were in a position where you thought poorly of the long term viability of the company. Wouldn't engineering a fallout with* the board be ultimately prudent?

*"with" here could even mean "in collaboration with".
No matter the quantities and amounts, any system or process where “I payed you X give it back” results in performing a payment without checking the assertion is fundamentally flawed.

If you can’t prove the assertion don’t make the payment, no matter how many months that means people might have to wait.
This is the pain with “agile”. The problem with building the skateboard first and morphing that into a car (as per the cartoon strip meme/trope) is that a car is nothing like a skateboard. It’s a rewrite. If you can know you need a car upfront then you save a YAGNI/OFINI cycle. I’ll let you guess what OFINI means :)
Christmas Eve 2014: https://news.ycombinator.com/item?id=8792328
It should also say that it fulfills the same purpose Adobe Lightroom does. I think this would help a lot of people. It’s not an alternative for photoshop for example.
How good is Darktable as a tool for a non professional simply looking to organize all their photos? Maybe apply some automated improvements, and do some deduping?
When I hear “80% of population X exhibits characteristic A”, my first reflex is to guess on whether I think the size of population X is on the order of magnitude of the presence of characteristic X in the general population. If not, I suspect I am learning something more about pop X than char A.

I’d guess there’s orders of magnitude more smokers than schizophrenics, making it seem unlikely smoking is a primary driver, though I’m sure there’s more to it than that.

I hear 80%+ of all perpetrators of sexual violence engage often with porn, but suspect that if porn drove sexual violence, its rates wouldn’t be decreasing. Most heart attack sufferers drink water within days of their cardiac event. All lottery winners have lottery tickets...
It is possible to convert the CO2 to methane https://en.wikipedia.org/wiki/Sabatier_reaction
but it is not as efficient as portrayed in the media. Conversion to gasoline or diesel fuel is much more difficult and inefficient.
I recently started to use the "neo-banks" (fintech apps that may or may not be actual banks, mostly for payments). All of them offer an app and APIs and ways to discover which contacts use the same app via their phone number.

Immediately following this I received highly targeted phishing sms messages that included links to plausible looking login pages.

Perhaps this shouldn't be too surprising, but people will get burned and somebody will have to pay for it.
overheard (year 2045) "can you believe this guy? His business card doesn't even run linux! It was one of those retro paper only cards."
Does it really need to be pointed out that a name and address enable far more than a lawsuit?
There are a number of possible origins for the name, not just the Chinese one:

https://en.wikipedia.org/wiki/Ketchup#Etymology

This article is a nice study in regulatory capture.
A lot of programmers don’t want to be on IRC and prefer Slack or Discord. Simple as that.
I'm not really seeing how this AD by golinks conveys an increasing trend of a 3rd party application to handle internal url shorteners.

Just seems to me that any company with a remotely competent IT staff could handle this with a few Dns records and a very simple lookup system.

But I've been wrong before admittedly.
But how can businesses may become known?

I see that maybe image ads are of the peacock feather type. Informative ads, like a new movie being out in theaters, can actually be net-positive financially, at the expense of the strain on public attention.
I used to run pretty competitively, however I'd always train with music / an ipod. In fact I still run with my iPod classic. Even with music I still daydream almost every run.

Concentration is a muscle that has to be trained like any other. There's probably a ton of selection bias in that individuals who can't focus don't go to D1 programs.
Maybe media do not report on that because it's the obvious way to do it. I am doing the same for my own company.
I wish raspberrypi could release something similar. Their product are still too powerful for my taste.
There’s a windows installer available. Any reason to believe that it doesn’t work well on Windows?
Not unless the service requires a phone number in order to enable MFA. Some providers require the phone number for "recovery" purposes once MFA is enabled very much defeating the usefulness. Countless times we've heard of a helpful AT&T / T-Mobile / Verizon employee forwarding texts or generating a new SIM card for a scammer with a fake ID. It's just too easy.
The problem with consulting is that it only scales linearly with the amount of bodies you throw at it, and it takes a lot of time away. I have been "consulting with a view to bootstrap" for a year and a half now, and the result is that I still have no real product, because most of my brain energy is spent on the consulting side to keep the lights on.
> Take it as axiomatic that heterosexual adoptive parents will, all else equal, generally raise more successful children

Successful at what? Experience says that they won't be more successful at being good to other people.

Your line of reasoning also leads one to say that black people shouldn't reproduce because their children are statistically less likely to become wealthy. That doesn't strike me as being an honest ethical framework.

The ethical choice would be to advocate for making the world less shitty, not for population cleansing or other acts of repression.
http://jayshah.me/2018/01/05/board/ (and discussed at https://news.ycombinator.com/item?id=16108235)
I have an anarchist streak and am generally wary of government/industry overreach, but even I would support a full ban on all advertising.

In fact, I would go even further and enforce plain packaging and standardized reusable containers.

We waste far too many resources on completely redundant products and specialized branded packaging.
The problematic part isn’t that they’re notified—that’s the expected behavior. The problem is that the book is pulled automatically without waiting for the author to respond. That wouldn’t be so bad if there were a lot of valid issues, but anyone can get a book pulled maliciously just by reporting a bunch of “mistakes”—which, as was demonstrated here, need not be actual mistakes.
> If you use USB devices on a regular basis, you'll remember which way USB ports are oriented, and you can just look at the end of the USB cable to see which way it needs to go in.

You shouldn't need to remember orientation or look at it! You're apologising for a bad design.

> Power and bandwidth aren't even related to connector type.

Not true! For example the max bandwidth you can currently put through USB-A is 10 Gbps with USB 3.1. Through USB-C it's up to 50 Gbps with Thunderbolt 3.
At competent companies -- I make no claim about Twitter here, but certainly at Google or at my employer -- it is extremely uncommon to have access to that database. All requests to access are logged and individually permissioned. Asking to access without a good reason, such as attachment to an active customer ticket, etc -- will get a hard no.
I’m not sure how that related to your original question. If your boss is instructing you to do something that you deem to be unacceptably risky, make sure they are aware of and take ownership of the risks. Large and especially regulated organisations (like banks) will have processes to track things like risk ownership. If you communicate risks like this, then not only have you covered your own ass, you’ve also done the responsible thing of notifying the correct stake holders. If they choose to act irresponsibly in light of that, then that’s on them.

I’ve done a lot of work in banks and this story sounds very, very familiar to me. Change the details of the system and it could be any number of projects that I’ve personally worked on. I’ve been brought into a number of projects like this at the ‘near completion’ stage, and each time I’ve reported on what I thought the risks were, suggested how they should address them, and advised them to delay delivery until they do. Some of those projects worked out well, some of them completely bombed, but I’ve never been put in a situation where I was made even partially accountable for somebody else’s poor decision making. So if your question is “how do I protect my own interests when my boss wants to be an idiot?”, then that’s the serious answer for how you do it.
Show HN: Python for Tor Onion Services
My commuting behavior was car only because every alternative took twice as long.
In my experience the ideal is to have a little lead gem machine that spits out leads, and discipline around how much time I consult every week vs time spent working on the product.
I expect a lot of people would say no to that and report the attempt to company security.

Of course, if I'm China, I can try it with enough people to get several assets.

Also, of the offer includes "we won't kill your grandma", uptake might be higher.
Nice find!

Abstract:

> These notes were originally developed as lecture notes for a category theory course. They should be well-suited to anyone that wants to learn category theory from scratch and has a scientific mind. There is no need to know advanced mathematics, nor any of the disciplines where category theory is traditionally applied, such as algebraic geometry or theoretical computer science. The only knowledge that is assumed from the reader is linear algebra. All concepts are explained by giving concrete examples from different, non-specialized areas of mathematics (such as basic group theory, graph theory, and probability). Not every example is helpful for every reader, but hopefully every reader can find at least one helpful example per concept. The reader is encouraged to read all the examples, this way they may even learn something new about a different field.

> Particular emphasis is given to the Yoneda lemma and its significance, with both intuitive explanations, detailed proofs, and specific examples. Another common theme in these notes is the relationship between categories and directed multigraphs, which is treated in detail. From the applied point of view, this shows why categorical thinking can help whenever some process is taking place on a graph. Form the pure math point of view, this can be seen as the 1-dimensional first step into the theory of simplicial sets. Finally, monads and comonads are treated on an equal footing, differently to most literature in which comonads are often overlooked as "just the dual to monads". Theorems, interpretations and concrete examples are given for monads as well as for comonads.

pdf: https://arxiv.org/pdf/1912.10642
Ok, but please don't respond to a bad comment with a worse one. That just leads to a downward spiral and helps nothing.

https://news.ycombinator.com/newsguidelines.html
> any advertisement on a private not otherwise restricted vehicle would be the providence of the state DMV

???

The state DMV neither writes nor enforces laws.
You might know this and use it as a short hand, but just in case: ARM doesn't use a BIOS of any sort, so there is no POST, just a bunch of vendor blobs (burned into the chip) that do bootstrapping then jump to your bootloader.

The biggest problem in his case is probably the 8 MiB serial flash; that is going to be rather slow to load from.
> Reflection actually isn’t too inefficient

My understanding is that it's completely uncached. It couldn't be any less efficient.
They probably specifically don't say that to avoid potential copyright issues. Depending on jurisdiction (I'm thinking specifically UK and EU here) you can't actually say that about a competitive product without encountering problems.
If you care about the quality of Hacker News, can you please follow the site guidelines? That's what they're designed to protect.

https://news.ycombinator.com/newsguidelines.html
Well that only makes methane so you need an extra step (like Fischer topsch) to get longer hydrocarbons. So it makes sense that using it that way would be way less efficient.
Validation is something that will likely happen in the future. But I also think anonymity is important as well. So figuring out that balance is key.

You're right I should have tried to corroborate the Reddit users' stories. Sorry about that. However, many stories on the site are corroborated and will be going forward.
Totally agree, i got the Zappos letter too and thought it was a sales hoax, 10% is. Joke, they readily distribute 10% coupons weekly. It’s basically legal firm taking the juice and giving them a layup for forking over the 30mn legal fee.
I wonder what fee the law firm ultimately got paid? Guessing 10-30mn
That's just a reason to also ban "influencing". Few other ways of advertising damage the basic fabric of society - interpersonal trust - as badly as influencers.
Very interesting, thanks for the link.
How to Recycle Cardboard into Anything with 3D Printing
Agreed. I’m a little surprised Indie Hackers didn’t mention it (hence my comment) given how viable it is. There are still stresses associated with this approach.