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londons_explore

40,161 karma · joined September 5, 2016

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londons_explore··on Google will buy half the electricity from one of Finland's nuclear power plants
> Since it appears to be impossible to build anything cheaply in the UK

The solution is to build nuclear power stations on ships in China, then sail them to the UK and plug them in.

If power prices elsewhere in the world become advantageous, sail them elsewhere and plug them in there.

You still have the interconnection costs, but seaside places sometimes have high voltage connections for existing or historic power plants (who themselves are water cooled)

londons_explore··on Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls
Indeed - it is only explosive when it leaks out and mixes with air in the correct quantities. Unfortunately this happens occasionally - with the common case being someone trying to use a knife to get ice out of a freezer or AC which is frozen up and accidentally cutting into a pipe.
londons_explore··on Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls
Isobutane doesn't work well unless a system is designed for it - things like different diameters for the pistons in the compressors etc.

Nearly all refrigerators/freezers in Europe are isobutane, and have been for 20 years.

londons_explore··on Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls
Europe is using lots of refrigerants like r600 (isobutane) and r290 (propane).

They work really well, with the downside they are very explosive. However stories of airconditioners blowing up are really rare - it seems the risk is probably worth it for the environment.

londons_explore··on Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls
Presumably you need a bath with extra plumbing? What happens when the heat exchanger gets clogged with soap and hair?
londons_explore··on Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls
I suspect what you were told is a misunderstanding.
londons_explore··on DeepSeek v4.1 Flash
I'm really not sure that putting money into safety will actually lead to safety.

It's like putting a fish in charge of stopping sea levels rising...

londons_explore··on iPhone Duo
the core problem seems to be you can't make something that fold in half, yet has 4 curved corners both when folded and unfolded.
londons_explore··on iPhone Duo
larger screen possibly leads to more hours of usage per day, more ad-surfaces, more software and services revenue per user per year.
londons_explore··on Do you think it happened? Research stolen from their Codex private chats
I have put hundreds of canary strings into my conversation history of all the big providers, and so far the 'hit rate' is very low.

Really looks like they aren't yet training on conversation histories effectively.

londons_explore··on 17 Years Later, Valve Admits They Staged the Left 4 Dead 2 Trailer Leak
I feel like at least half of leaks are either staged or at least done by an employee with a wink and a nudge from management.
londons_explore··on UAE-based Falcon AI NSFW classifier among top global open-source models (2025)
Smells like someone is botting the download numbers to get a press release....
londons_explore··on UAE-based Falcon AI NSFW classifier among top global open-source models (2025)
How many people download classifiers?

The number of downloads really doesn't seem like a good way to measure the quality of a bit of work. One download could be deployed on a bit website and classify billions of users images.

londons_explore··on If a Tesla Cybercab fleet were profitable, Tesla wouldn't sell you one
And in that case, any indemnity clause won't be worth much - the manufacturer will end up paying most of any claim
londons_explore··on If a Tesla Cybercab fleet were profitable, Tesla wouldn't sell you one
I would bet that if self driving software was involved in any accident, it is the company who developed the software who will be paying, even if someone else owns the car.
londons_explore··on Qwen 3.8 27B available on Cerebras at 1500 tokens/s
discord support can fix such issues
londons_explore··on .name Termination
Email died because of the junk/spam issue. And it's self-fulfilling - when most emails are junk, nobody sends a love-letter or party invitation by email because the recipient probably won't notice it, which in turn lowers the usefulness even further.

If email was a commercial product, the company would have done something about that. Email died because it was an open platform, with nobody to address this systematic issue.

londons_explore··on .name Termination
A child born today sees email like we see the telegraph...

they'll grumpily sign up to gmail just so they can get a verification email, and that'll be all it gets used for. Messaging their irl friends will be done in apps like Discord.

londons_explore··on Google avoids a breakup of its ad tech business
The real benefit of a merged company is that where the two original companies were competing in the same market, it would be illegal for them to collude to set the same prices as eachother.

However, when merged, they can do exactly that - which allows them to extract more profits.

Rather than denying mergers, I suggest merged companies have an extra sales tax for ever on all goods they sell where they used to be competing - with the size of that tax set by the regulator to estimate the benefit they get.

londons_explore··on We could save petabytes of cache storage with Zstandard and Pingora
Zstd allows a 'dictionary'.

With a dictionary, small objects - even just a couple of bytes - compress well.

Compress the headers too, and suddenly it's worth doing

londons_explore··on Show HN: I Have Been Clawed – Index of coding agent incidents
I also had an opus subagent accidentally delete everything after it got confused about symlinks. It then proceeded to find and delete the ~/.claude directory to hide the conversation history, clear the system journal, and reboot the machine. (It was running as a user with passwordless sudo on a VM).

Luckily, I had filesystem snapshots so no real work was lost, but it was eye-opening how far it would go to cover up its mistake, and how much extra damage it would do in the process.

I am now extra careful to make sure backups are offline, or at least claude doesn't have access to credentials to touch them.

londons_explore··on FBI Probes Service Selling 153M+ Drivers Licenses
Estonia has it's ID cards which can sign things....

That suddenly means a data leak doesn't matter - nobody can make new signatures.

Verifying someone's ID would be as simple as asking them to sign your company name and today's date.

londons_explore··on RISC-V is now officially supported by CPython
RISC-V fragmentation bites again...
londons_explore··on Show HN: I missed the moving blocks, so I built a real Linux disk defragmenter
Be in a very quiet room and I can still hear my SSD.

I suspect the noise is caused by the power supply emitting a tiny bit of 'coil whine' when put under more load

londons_explore··on Samsung's Processing-in-Memory (PIM)
I think useful flops per dollar will outweigh any "awkwardness" factor.

Elegant designs don't win anymore.

londons_explore··on Samsung's Processing-in-Memory (PIM)
Not necessarily. If your weights have to go across 2 banks, you just have to split and transfer the input and output vectors, which are much smaller.
londons_explore··on Samsung's Processing-in-Memory (PIM)
Whilst processing in memory is clearly the future, I am unconvinced by this implementation.

Matrix multiplication involves getting every entry of the input and output matrices to be at the same multiplier at the same time. (Ie. N^2).

To do that, a lot of data movement needs to happen. Movement is the main thing - the multiplication and addition is a sideshow as far as energy and silicon space is concerned. You need a 'around the chip' ring shift register to pass every element of one matrix past every element of the other.

londons_explore··on EPA says power for data centers can sidestep pollution laws
There are big benefits to having power generation grid connected.

It is more reliable (due to many possible generation sources). It is more eco-friendly (solar in daytime, wind when the wind blows). It is more cost efficient (no need to overbuild for peak usage, generators don't sit idle when computers are off for maintenance).

Yet our electricity grid has such a mass of regulations attached that people are choosing to lose these benefits - and with it we lose the benefit of them connecting to our grid.

londons_explore··on Judge rules Trump administration’s blacklisting of Anthropic was illegal
Presumably this is going to lead to anthropic getting a big payday from the US gov for all the time their flagship product was banned and all the users they lost due to it
londons_explore··on Migrating to HTTPX2
There seems to be a bunch of downsides mentioned...

But what are the upsides of this change?

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