HNHacker News
TopNewBestAskShowJobs

Retric

61,758 karma · joined September 21, 2007

submissionscomments
Retric··on What shall I teach my son?
> massively increases

The data doesn’t support that assertion. Elite collages do favor elite high schools, and elite high schools do favor elite middle schools etc but each link in the chain dilutes the impact of the steps further up the chain. Kids have many opportunities to jump up the chain before college and many to fail to keep up with the elite track. Which is why statistically elite preschools have such a minimal impact.

Of course that’s adjusting for the role of the parents which impacts attendance at elite schools but is obviously not impacted by their kids attendance.

Retric··on What shall I teach my son?
Elite early education minimal little long term benefit, people tend to revert to the mean over time. The education system has plenty of slack for intelligent individuals to excel, so play the long game.

Health and wellbeing pay the best dividends as you can maximize the nurture aspect of intelligence early and build resilience against unexpected hardships.

Retric··on Ukraine claims first drone evacuation of wounded soldier
I’d expect there’s many situations where sending a helicopter would be considered too dangerous for the crew, but the lack of medical care on a drone seems like a big limitation.
Retric··on Ukraine claims first drone evacuation of wounded soldier
Drones are not at equal risk in all missions and neither are wounded soldiers in equal need for evacuation. A long list of Americans have died in helicopter accidents while receiving medical transport but a much longer list had their lives saved by those same basic methods.
Retric··on I built a programming language that LLMs can't use
Look at the “legal %” field on that chart. That’s utter trash even counting per move vs games without errors. Further they outperform vs bots who stick to main lines more than normal players, actual performance vs humans means both lower ELO and more errors.

Note: * = Anchor player (fixed rating, used for calibration)

Retric··on I built a programming language that LLMs can't use
LLM’s are terrible at following the rules of Chess when playing a game. Determinism isn’t helpful because valid moves are so dependent upon the total state of the board.

Programming state gets way more complicated, but code is generally written to help people understand it greatly simplifying the process. Feed in “cursed” code leveraging obscure language features in creative ways and LLM’s and most people fail.

Retric··on Florida's HOAs and condo associations are making the housing crisis worse
HOA’s kill any character an area has. The fees more than offset the economic benefits of joining one. The damming economics largely comes down to local governments skipping road maintenance without giving you a discount on your taxes.

Net effect you lose money living in a worse location.

Retric··on Tesla Roadster
At home charging is actually the #1 reason I don’t want to buy an ICE. IMO it’s by far EV’s biggest benefit.
Retric··on Solar surpasses nuclear power globally for first time
The nice thing about maps is they show every country, so you can quickly see how few lack such links. If like tables add up what percentage of countries aren’t tied in with at least one of their neighbors. It’s a short list, even NK is tied to China.

You may discount England but it’s got enough DC links to move a large fraction of demand.

Japan has two networks for historic reasons, but they can move well over 2% of each grid’s average demand to the other. It’s just significantly less efficient but that’s relatively minor vs the other disadvantages of a split 50hz vs 60hz national grid.

Retric··on Solar surpasses nuclear power globally for first time
Russia, China, and most of the rest of the world has interconnected their grid with other countries.

This is a map of where the grid is frequency matched across internal borders allowing easy exchange. DC connections don’t need this synchronization, but it reduces losses with AC. https://en.wikipedia.org/wiki/Continental_Europe_Synchronous...

In war this might be a minor issue, but in war electrical infrastructure ends up a target so it doesn’t matter that much.

Retric··on Solar surpasses nuclear power globally for first time
National borders don’t limit power transmission.

Chile still wants transmission north south because in the winter solar closer to the equator has longer days and in the winter solar near the poles does.

Retric··on Solar surpasses nuclear power globally for first time
Transmission lines can act like storage when there is PV to the east or west of you. This doesn’t remove the need for storage, but can dramatically reduce it.

The old model of cheap peaking power plants and cheaper base-load power is equivalent to cheap peaking power + cheap but inconsistent green energy. It’s a very complicated optimization problem to work out the optimal mix of locations and quantities to of each, but price signals can help assuming you haven’t completely distorted the market.

Retric··on Tesla Roadster
You’re trying to apply an arbitrary metric to two radically different process. Suppose you could pay an extra 1,000$ so it fils in 40 seconds vs 4 hours at home (and only at home).

Personally it wouldn’t be worth the money to me because the only thing that matters is the time to plug it in and the time to unplug it.

Retric··on Tesla Roadster
> it's not really a benefit because charging takes a lot longer than a gas fill up.

Plug in at home takes way less of your personal time than a gas station and costs significantly less than public charging.

Retric··on MIT class project turns into an FDA-cleared treatment for tremors
If you feel that way, don’t start pissing contests.
Retric··on Gemini 4 Argon
Even individual words can be an issue. Humans understand when you want a new story about a magic school there’s issues using Hogwarts as the name.

LLM’s will happily regurgitate multiple paragraphs practically verbatim if you don’t specifically design them not to behave in this way.

Because ultimately when you design a system to best predict the next output based on a given input perfect replication of prior training is the correct response mathematically.

Retric··on MIT class project turns into an FDA-cleared treatment for tremors
Have some conviction. You don’t need to respond, but going limp isn’t any way to live.
Retric··on Gemini 4 Argon
You misunderstood, “Larger patterns still emerge” means yes you notice LLM’s but it’s for different kinds of patterns than you get from people.

> not because of plagiarism concerns

I’ve second hand accounts of meetings focused on exactly the problem of how much verbatim text was being spat out and what to do about it. Some versions of specific models are far worse at this but it’s a huge legal liability not to address it.

Retric··on Amazon pushes up prices across the Internet
Amazon’s logistics are shit.

You’ll get something to show up on schedule but it’s frequently needs to be returned because of a problem on their end. No I don’t accept paying full price for a used product in subpar repair. No I don’t want a convincing fake.

The hassle of even 1 return in 20 isn’t worth faster delivery. Worse even if I just throw away their junk I still need to make a new order.

Retric··on MIT class project turns into an FDA-cleared treatment for tremors
That’s a weak follow-up, the first question was a solid 9 on the asshole scale. I’d have trouble justifying a pity 3 on your second attempt.
Retric··on The United Kingdom generates less electricity per person than in the 1970s
> how insanely much compute AI needs

Needs isn’t quite the right term as AI energy use is way higher than the market actually supports.

A large fraction of AI’s energy use is pure bubble me too redundancy. A long list of companies are doing essentially the same training with essentially the same data. When grok dies all that training goes away independent of any use of AI by consumers.

Similarly, by subsidizing usage with VC funds you get a lot of demand that goes away at market rates.

Retric··on Gemini 4 Argon
People use language in their own distinct fashion. To the point where you can often figure out the writer from a long enough sample. Newspapers and internet comments end up a blend of different voices but in visually distinct boxes.

LLM intentionally randomize output to cover up all the plagiarism, but this largely destroys the consistency that cause writers to feel unique. Larger patterns still emerge but it just feels stale.

Retric··on MIT class project turns into an FDA-cleared treatment for tremors
> I happen to have been following research around beta-carbolines for almost two decades and am curious whether clinical practice follows that research.

So you’re just clueless here, wow what a rude question.

Retric··on Chernobyl particles reveal unexpectedly stable nuclear fuel after 40 years
> Did we? Where are those fusion plants installed?

Oxfordshire etc but most of the cost is stuff you’d see at any nuclear power plant.

> Only $11 billion of the $183.3 is true expending

That’s not how money works, there’s zero difference between a tax break and handing out money because money is fungible. The IRS will write you a check on a “tax” break.

Retric··on Chernobyl particles reveal unexpectedly stable nuclear fuel after 40 years
> We don't know this.

Except we do know this because people built similar systems at similar scales and temperatures before.

> All of them received significant investment

Not compared to Nuclear, Fossil Fuel, or PV R&D + subsidies. For scale in the US alone “From FY 2016 to FY 2022, federal subsidies for renewable energy totaled $183.3 billion” That’s more than 1 ITER per year, and splitting that budget across multiple countries and 2 decades is a very different proposition. Especially as there was ITER funding in this time period so the delta is less than the full cost of the project.

Further look at the timeline, I’m suggesting the project should have finished long before PV became cheap.

Retric··on Chernobyl particles reveal unexpectedly stable nuclear fuel after 40 years
I agree diversifying bets is a good idea, but building ITER 20 years ago wouldn’t have been a particularly significant investment.

Spend 1 billion/year (in today’s money) from 1987 and by 2006 you’re well past ITER’s projected cost back then there was little advantage to waiting. JET’s first plasma was 1983 so that’s another 10 years for design and 12 years for construction.

By comparison the US was spending ~12 Billion / year in energy R&D in 1978 (2026) dollars. That fell over time, but it’s not like total energy R&D spending couldn’t have increased vs historic levels. https://www.congress.gov/crs-product/RS22858

Retric··on Chernobyl particles reveal unexpectedly stable nuclear fuel after 40 years
If you want on of many direct quotes from them “DT-2 phase with the target to complete all project goals including the Q=10 project specification”. Guarantee may be a good little overstated, but Q=10 is a very pessimistic estimate.

https://www.iter.org/fusion-energy/what-will-iter-do

Really the actual science bits are focused on the breeding blanket, remote operation, material science, etc hitting a high Q on DT doesn’t matter with the world’s supply of tritium so minimal. DEMO might be targeting Q=100, but that’s only useful if the tritium supply is sufficient and the timeline ends up way faster than starting in 1978 to only see a ~2033 first plasma.

Retric··on Chernobyl particles reveal unexpectedly stable nuclear fuel after 40 years
I really don’t trust that LLM estimate, they are really bad at that kind of thing but for the sake of argument let’s take that as a baseline.

ITER is supposed to be a 10-20x return on energy provided (10x being a basically guaranteed minimum) which means it may or may not be better depending on the specific bomb design, but it’s not massively better.

People talk about fusion as useless and slow but the current record holder in steady state was first turned on in 1983 and hit 0.67 in 1997. It’s not a failure of the underlying technology, it’s a near total lack of investment that’s stalled progress. ITER was started under the first Bush presidency and scaled back to a minimum design. It could have easily been built 20+ years ago if it was an actual priority.

Retric··on Chernobyl particles reveal unexpectedly stable nuclear fuel after 40 years
Not really making nukes take a ridiculous amount of energy and you only get to use it once where the energy to create ITER gets split across its operating lifespan.

Further fission here requires a fission first stage which represents a huge additional energy input.

Retric··on FDA may allow some toxic chemicals to be added to food without safety review
The flaw in that argument is a great number of chemicals do not cause cancer.
← PreviousPage 2 of 34Next →