skysight-inc/HackerNews huggingface dataset:
While this is the standard answer that people who have looked into it deeper give, it still surprises me.

The largest solar farm in the US is about 570 MW. Some have calculated that we're going to need to build two 400 MW farms every week for the next 30 years to reach a "middle-road renewable energy scenario." [1]

That's insane.

(Or we could be building one 400 MW solar farm and one 400 MW wind farm every week instead for 30 years. Point is, though, we're far from being able to do that.)

So we're still going to be struggling in 20 years. Wouldn't we be in a better position then if we had also started the process of building new nuclear plants 20 years prior? "The best time to plant a tree was 20 years ago, the second best time is today," etc.

1. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4443474
Many Bluegrass websites are labors of love created by musicians that are not experts in computing and web design. If you were to tell them that they are violating the ISO 8601 time standard, they would have no idea of what ISO 8601 was. Just be glad that they are adding more Bluegrass to the web.

Mind you, there are high quality Bluegrass websites around. For example, take a look at the California Bluegrass Association website.

https://californiabluegrass.org/

Or the IBMA website.

https://ibma.org/
> I am piecing together a 'middle way' solution with the help of locals that respects the Kingdom of Hawaii while also keeping other parts of the island open to preserve many local businesses that are impacted by the fires (directly or indirectly).

any more you can share on this?
Wow, that would be quite the step change in one iteration. Bold statement.
> Also lead-acid means 50% usable capacity for longevity so the 12v 12Ah lithium is 12v 24Ah lead-acid (minimum).

That's not a concern, is it? We're talking about battery backup, meaning the "expected use case" is that the Lead-Acid battery is sitting at near 100% capacity for almost its entire life, without significant amounts of discharge. Sure, you've got to discharge when the sun goes down but I don't expect a properly-sized battery to be deeply discharged (especially when we're aiming for multiple days worth of "worst-case" power, like multiple days of clouds/rain to reduce our power-collection).

Lets just be dumb with napkin math for a second: 12-hours of charge, 12-hours of discharge on a "typical" day, with a 3-day / 72-hour period of worst-case charge. Where does this leave us?

12-hours of typical discharge / 72-hours of worst-case discharge == DoD of 100% to 83% on your typical day-to-day basis.

Hardly anything that considers a "deep discharge". And if we really need deep-discharges, most Lead-Acids can survive something on the order of 300x to 500x deep discharges right? So its not like the 5 to 10 times a year where you need all 72-hours of battery are significantly hampering your lifespan?

> And even then is longevity of lifepo4 so much better it’s not funny.

Measured in deep cycle-counts (ie: cell phones or laptop usage), sure. (like 3000 cycles on LiFePo4 vs 500 on Lead Acid). But years of sitting on a float-charge, I don't think its that much better than Lead-Acid.

----------

That being said, LiFePo4 is a "superior" battery for sure, and its much cheaper than I remember. But Lead Acid remains significantly lower-priced than LiFePo4 as far as I can tell (2-to-1 or less)

I think you have a point about Lead-Acid charging slower when its near full (and keeping it full is key to keeping Lead-Acid long-lasting). So I admit to not recognizing that (LiFePo4 also charges slower when near full, its just that it charges like 3x to 4x faster than Lead Acid so its less of a concern)

> Please spend the extra money on lifepo4, save yourself some headaches.

We're at the hobbyist level where the original post decided that MPPT solar charge controllers weren't needed (at least, in an earlier version of this project)

Clearly no one here is talking about the strictly most optimal design, but are instead talking about simpler and cheaper solutions.

--------

Simplicity here is key. LiFePo4 does _NOT_ like topping charges or staying at 100% charge for long periods of time. Lead Acid however, prefers 100% charge and UPS use Lead Acids for this reason.

LiFePo4, in UPS/Standby like systems, need to stop charging, and wait for the battery to be used before engaging in a new charge cycle.

Lead-Acid on the other hand, can just have a constant voltage applied (ex: 13.5V or so) and you can just hold that indefinitely, for incredibly simple standby circuits.
It doesn’t matter though, because the percentage of Americans who can understand public key crypto even in a vague way sufficient to critically read a technical analysis and judge it to be true, you could count on one hand. Nobody has proposed it because if any politicians have seen such a proposal on their desks, even if they themselves grasp it (unlikely), they know most Americans would freak out on principle.
Yes that's what I meant
Unfortunately most countries didn't follow France, and unless you have a time machine that is going to be quite difficult to change.

When it comes to climate change, the most important goal is to reduce emissions as quickly as possible. This means switching from 100 units gas to 90 units renewable 10 units gas in 5 years is way better than switching to 100 units nuclear in 15 years. If you figure out a solution to the remaining 10 units of gas somewhere within 100 years, you end up ahead!
Currently it’s illegal for a car to be too quiet, or too loud. There is a Goldilocks range, increasingly specific, about how loud a car should be. The aliens are laughing at us.
In Ontario Canada, we have "fault determination rules" - fault gets "Algorithmically" assigned, sometimes illogically. Anti-consumer, but saves the insureco a ton on lawyers and balances out for them.

Often police make you go to them. Tow trucks aren't supposed to bring unreported collision vehicles anywhere but a police station.

Cops here do like to take the interaction as an opportunity to issue a ticket, such as "improper lane change" or "careless driving" (which can be another "hit" on your next insurance renewal in addition to the "hit" from being assigned fault).

source: got summoned into court because the physicist who crashed into me tried to fight their ticket. They lost. My work treats this like jury duty and pays me, but I didn't realize until months later they took it out of my vacation. Grrrr.
Idempotency, testing, readability, and longevity are all too often ignored in CS and tech in the name of speed and simplicity.
Brexit hasn't even begun, Uk does not do checks on EU goods entering the country because it would cost too much, they accept all electrical goods from EU and have not made any changes to their regulations of anything from e-bikes to vacuum cleaner power ratings. Because no-one will produce goods specifically for UK, it will be massive extra cost.

Recently they announced that the EU CE (Conformité Européenne) mark will be accepted indefinitely.

As son as they start changing any of the EU laws on the book, even for maximum allowed power of vacuums, that will cause trade issues.
this is the worst conspiracy theory i've ever heard have you been to an american city?? they're terrible. there are like five habitable cities in the US, only one really good one which is not capable of building transit infrastructure at sane costs (cuomo train hall, no through running at penn station, the world's most expensive bridge per mile, 2nd avenue subway). oh and there's no housing so it's incredibly expensive to live in one of those five cities
Call it "transformation" and you can sell both.
I'm sure I'll get 53 cents from a class action lawsuit somewhere down the line.
I have never had any indication to think that I am balding until I used this app.

I want to say it is broken. =)
North America has been pretty insulated from a lot of the global energy instability occuring in the aftermath of the Russian Invasion of Ukraine along with the coups in the Sahel.

Canada, US, and Mexico have enough resources and capital to be largely self sufficient, or fill any holes with imports from other American nations like Brazil or Venezuela.

Most of the Middle East's energy exports are sold to India, China, Japan, and South Korea and most of Europe's are sourced from a mix of North Africa, Eastern+Southern Europe, and the Middle East. This means Eurasia is heavily impacted by instability in Eastern Europe and the Middle East.
Ask HN: Co-Founder Conflicts of Interest
Hey all,

Had a random question for HN. About a year ago I started a business with my co-founder. He has taken the sales and CEO role of the company while I have taken the CTO and CFO role of the company.

About 6 months ago we raised a small seed round from a prominent investor and speaker in our industry. At that time we decided we were going to take $X salary amount for the foreseeable future. During this time our business has grown substantially to about $1M a year in arr.

Where the conflict arises is my cofounder has recently gotten the opportunity through our investor to do some paid speaking to help build his brand, and our company’s brand as well.

Where thing get conflicting are it sounds like my co-founder wants to pocket these speaking engagements and not run them through our business.

Is there some typically best practice here? On one hand I totally get going above and beyond and getting paid for it, on the other hand I’m not submitting a few more PRs and asking for a bonus because of it either.

Where do people usually draw the line? What happens if my co founded expenses a bunch of stuff as part of this opportunity but then pockets the proceeds of doing the engagement into his own bank account?

Definitely new waters here and I want to tread lightly.
Ah I think I see what you're getting at.

Most of the stuff I read isn't "your SAAS app should have atomic clocks" and more "here's some maths on why it works, here's some explanation of what we were going for, here's some pseudocode".
>In short: The people you’re talking to aren’t the people who are doing the actual work, The people who are doing the work have no industry experience And the numbers they’re basing their analysis on are probably whatever they found on google.

I think this really sets the wrong expectations.

The partner or director that sold you the work may not be doing the day-to-day work, but that doesn't mean they aren't involved. Behind the scenes, the consulting team should be frequently checking in with the director/partner to make sure they are on the right track. Major deliverables are reviewed by the director/partner before they are seen by the client. You should also be meeting with the director/partner frequently to make sure they are aware of any feedback you have about the consulting team's work. If these things aren't happening, you should give that feedback to the partner and look elsewhere for future work.

The good consulting firms may not hire people with industry experience, but instead they select hires that are good at researching and gathering data from a lot of different sources and synthesizing it into pieces of information that are more easily digestible by others. This is what enables those consultants to get quick feedback from people who do have industry experience (the directors, partners, or others in the consulting company that they have access to) and course correct where needed.

Don't get me wrong, there are a lot of scummy consulting groups out there. IMO the key thing is to understand that while the partner who sells you the work may not be the one _doing_ the work, the people doing the work _will_ follow in the partners footsteps. If the partner is mostly absent, or you think the partner is pulling a fast one on you, their team probably is too (or vice versa), and you should ditch them at the first opportunity. If you have a good relationship with the partner and think you can trust them, they are going to try and maintain that trust by making sure the team doesn't do anything to betray that trust.
I started this discussion, and it never went anywhere but where I originally said.
The top 5 results of this search are driverless car examples for me...
Unlimited screen time taught me a foreign language that nobody in my family speaks. As a small child I watched German-dubbed anime on TV and picked up German from it.

I know at least a dozen other people my age that had the same experience in my country. I think what you do with the screentime matters a lot.

(Unfortunately, knowing German hasn't been all that useful outside of hanging out with people online.)
Not an outlier, I almost exclusively use full-screen browser windows. Even if I need to see content in close proximity, I usually just switch between two workspaces (vim on one, browser on another) and flip back and forth pretty easily to see the output.
Pretty sure Pixel already verifies the entire boot chain including firmware.
The overnight cost of building nuclear is about $7000 / kW. Wind and solar are closer to $1500 / kW before taking storage into account. That's plenty of margin for a wide variety of storage solutions - including simply building a huge overcapacity and letting it idle, or doing carbon capture on a peaker gas plant.
Yeah now we in Europe pay 3x more for energy that we used to, and the process of liquifying natural gas generates 2-se the emissions that we did when we got gas from pipeline. Shipping LNG around the world is a greenwashing disaster, it's like when Europe burns biomass from trees chopped in the amazon and calls it 'sustainable'
> There was a good article I read recently that made the argument that the gargantuan cost of nuclear, coupled with long regulatory lead times and lots of local opposition make it much too slow to deploy, when we need drastic changes ASAP.

Fixing the regulations and committing to a large scale construction of at least 1,000 nuclear power plants in the United States could solve these problems pretty easily.
There are a lot of countries that are building or have tried to build nuclear in the last ten years.

In the US, the major nuclear projects are long running boondoggles, going way over.

In France, nuclear is so expensive that the national electricity company had to be nationalized to avoid bankruptcy, and plants are being closed.

Finland's Olkiluoto plant is 10 years over-schedule and has 300% cost overrruns.

South Korea had major cost overruns and is set to close half their plants

China isn't kind enough to share cost figures, but has reduced planned plants by a major percentage, indicating that the investment return is not very good. They do not have regulatory hurdles.

Maybe the only country on earth capable of building competitive nuclear is Russia of all places. They steadily increase the number of plants under construction and do not see to go over-schedule, though we don't know what the budgets look like.

While the US has a bad reputation for make infrastructure building ability, it seems to be global problem.
I'd say that 5G has finally delivered on the promises of 4G - roughly gigabit speeds. I pretty consistently get around 400-600 Mbit speeds, with occasionally hitting 1200 Mbps. This is without mmWave which is not launched on iPhones outside of the US.
That's a good point. Since it's looking at offenders and not offenses, I don't think they can diverge too much (but perhaps I'm not thinking of the math correctly). I did find a study looking at just first-time offenders, which found a similar level after five years: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3095888/figure/....
I read it from an egoist perspective and I think it actually makes sense. Not sure in which way you are using the word irony, but if by the technical literary definition, yes I agree. Ironic.
> Why’d it explode one day almost like we got a helping hand?

The fundamental difference between the past civilizations and modern civilization is that all past civilizations relied primarily on human/animal power and modern society relies on non-human power. This shift occurred in the early 1800s with the development of thermodynamics and the scientific understanding of the relationship between heat, work and energy. Once we could decouple work from human population, it allowed modern civilization to do more work with less humans. Something previous civilizations never were able to achieve. A train could carry more goods across the country far faster than a thousand horses. An excavator can dig out more dirt in an hour than a thousand men. Whether trains, excavators or super computers, the work that is done is due to thermodynamics.
If you price in externalities, as we will have to do in order to slow down climate change, then nuclear is way less expensive than coal or gas.

Also, other countries have historically been able to build plants on reasonable timeframes and budgets.

If there was political will, we could have a large fleet of nuclear plants in under a decade.
Who the Tech Is Meant For
I noticed some of your bad prompts are a little "wishcasted", although that's pretty common.

People put stuff like "bad hands" into every model assuming it'll work, but it only works on NovelAI descendents because that's based on Danbooru which has a "bad hands" tag.
> blocking ads as a concept

Problem is, ads now are trackers. Of course, there are few ads that are not. I also won't mind if the ads are static images (that are not generated from/linked to 3rd-party/trackers) and unable to click on. Thing is, those are just rare, and in practice blockers can't block them by default, because they are not distinguishable with other contents. So in general, those are not blocked, and blocking "ads" (the ads that are trackers) is still ethical to me.

And just FYI, blockers have the rule that don't block self-promotions (self-advertisements) by default.
Not-for-profit institutions are exempt.
> There's no shortage of construction workers or materials.

In many countries there is a shortage, actually. Especially for construction workers.

And a big limiting factor is the lack of money: money isn't unlimited and you can only spend each dollar once. You have to choose, so better spend it on the option with the biggest impact.
I don't really feel the need to shut down nuclear stuff, but my impression from the past couple of years of these discussions is that nuclear is not only super costly, but logistically very hard (ignoring regulatory environment issues! Just logistics), and is just super hard to pull off. Meanwhile lots of other things have shown up, are very cheap, don't necessarily require huge water inputs, etc.

France is the nuclear success story, of course! But the irony is that these power generators can only make money when used at 80-90% capacity. France's reactors don't get that high, and so they're quite a money pit. There's the argument that "losing money" generating power is fine (we don't expect to make money on libraries or streets), but it's important when people argue about regulation being the problem. The most open and willing ecosystem for nuclear power is one that exists due to massive state subsidies.

Yeah lots of renewables aren't 100%, but power is power is power, and it feels like doing a bunch of easy stuff that also happens to make money for private actors (sidestepping some of the trickiness of larger gov't-funded projects) is a thing that our modern society is well oriented towards.

EDIT: to be clear, if there was a huge pro-nuclear movement that showed up tomorrow that could get things done, I'd be all for it. I just like the idea of doing easy things that are accepted by wide swaths of the population rather than just sitting around lamenting that people are "being irrational" or w/e
Awesome project! I’m sure someone would be willing to buy this from you if the traffic is big enough. If you want to move on to other engineering projects this may be best path. If you’re interested in learning sales and marketing yourself I would look into affiliate marketing with hair loss product companies. Happy to chat more about this if you want help.
Show HN: Text file based time tracking
If that’s true, I’ve been literally wasting a really annoying keystroke every time. Why on Earth don’t they include SAVE in the list of commands they advertise in the footer?
Sell it to one of the hair loss replacement type companies for a million.

What I don't get is why you need AI here. The link at the bottom to the scale makes it easy to verify by looking in the mirror, and that is less hassle than trying to gyrate my head into different positions to get the shoots done.

I think AI could do more here? For example - what would I look like with treatment X, Y, Z. And in general what are the treatments and tradedoffs. Last time I looked into it there is some kind of pill that only works for some men and if it works you have to keep taking it or it all falls out again. And there are implants. Obviously there are also wigs etc. And the cheapest option - a number 2 all over.
Thank you for that. I couldn't find that info anywhere.
> We went from multigenerational homes and kids living with their parents, inheriting their houses, and if buying -- doing it after they grew up and saved / got help to buy their own house. To a situation where everybody thinks the first thing you have to do after you get your first job is to get expensive mortgage and buy your own house

the situation is pretty much the opposite of this, we went from where folks could afford a house pretty quickly, sometimes even on a single salary, to double incomes not being enough, and the only hope of housing for some now being multigenerational and/or inherited
It would be a lot more exciting IBM wasn’t behind it.
Gift link: https://www.nytimes.com/2023/08/21/technology/waymo-driverle...
How long until LLMs and friends are capable of producing life-like video evidence suiting any facts for any case? The credibility of a recording is already tenuous. It's only going to get worse. You can have all the footage in the world, but if it's considered compromised or bunk, what then?
What election fraud?
those animals run pretty well .. where is there more information on this ecological / ecosystem impacts part... species names and such ? forests too ?
Worked in nuclear power for five years and wish people could divorce themselves of bias when considering power. When you plug things in it has a cost greater than the dollars you are paying. In raw deaths per megawatt nuclear wins above all else. I'm not saying we should avoid solar and wind. I'm saying we should dive headlong into every form of power that seems a reasonable risk to human life and the environment before 1000+ human death wildfires, starvation, and every other natural disaster becomes common place. Belching coal exhaust or gas turbine exhaust into the air seems a careless act when I have personally sat inside, on top of, under, and to the side of nuclear reactors and have yet to fall over dead. Spent fuel can be handled and most import you don't need to breath it and it doesn't warm the planet. Everything has a cost and I would gladly bare the cost of nuclear for a world worth living in.
That will only incentivize posting low quality worthless things in order to improve position and reach in comments. Might as well just charge them $8/mo for the privilege of making other people see their comments.

Edit: I think I misunderstood what you were suggesting (just a chronological timeline?).
All happy families are alike; each unhappy family is unhappy in its own way

https://en.m.wikipedia.org/wiki/Anna_Karenina_principle
>it wouldn't require any of your engineering team resources

other than the resources to evaluate the commodified open-source alternative. and the resources to manage the risk of that alternative, and the smaller company who runs it, going away.

"nobody ever got fired for buying IBM" is usually said in a snarky way, but there's real value in not only not having to think about the provider, but not having to think about which provider to choose. making that decision has a cost, and the more off the beaten path you go the higher the cost of that decision.