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kavalg

522 karma · joined May 25, 2015

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kavalg··on TSMC to build second Japan chip factory
Until "recently" (mobile phone era) Intel/AMD basically had no competition. They completely missed the mobile market and are now seeing competition from ARM in laptop/server. An there is also RISC-V on the radar. When/if CPU architecture becomes more de-monopolized, manufacturing competitiveness will be a big factor.
kavalg··on A mistakenly published password exposed Mercedes-Benz source code
I wonder if any private keys used for signing genuine MB parts have leaked as well. Auto makers seem obsessed with controlling the spare part market and leaking the keys used to authenticate spare parts would make it possible for other vendors to produce compatible parts in the future.
kavalg··on Polars
I am curious how does this compare to nvidia's rapids.ai / cudf.
kavalg··on Fewer people are buying electric cars in the US
plus the trailer that has been advertised by the owner :)
kavalg··on Calorie restriction in humans builds strong muscle and stimulates healthy aging
Sure, but for how long?
kavalg··on F-35 can’t be found after pilot ejected
Could it be hijacked by an adversary that hacked into the plane's computer?
kavalg··on I don't want to host services but I do
just FYI, I've been running a few services on a Hetzner VM and a few others in a box at home. With an 5 minute uptime ping (uptime robot) I am consistently getting a 3 to 4 nines uptime for the home server and that can be substantially improved if I care to put an UPS (my old one failed). As others pointed out, home ISP is often not great for self hosting due to things such as asymmetric transfer speed, periods of higher latency and short, but sometimes frequent outages.
kavalg··on Ocean Heat Record Broken
And it looks like the "solution" from their point of view is that you consume less, but pay the same amount of money or even more, so that the economy keeps "growing".
kavalg··on Ocean Heat Record Broken
And what if corporations and government/authoritarians are (loosely) the same entity and pro-business libertarians are on a paycheck/indoctrinated :)
kavalg··on Austrian leader proposes enshrining the use of cash in country's constitution
Do you have a source for the 50.000 € limit? At least where I live, even as of now it is more 5000 € for a single deal/sale. If the sale amount is above that, it must go through a cashless payment.
kavalg··on Ask HN: Is depleted uranium being spread from the Khmelnitsky explosion?
Right, thanks a lot for noticing this and for the links. Makes sense.
kavalg··on Ask HN: Is depleted uranium being spread from the Khmelnitsky explosion?
If we are talking about DU dust cloud, maybe you could avoid going out for a while and doing intense physical activities. Also, avoiding freshly picked vegetables and resorting to packaged food for a while may help reduce exposure. AFAIK, most harm goes by inhaling the dust or eating it with contaminated food.
kavalg··on Ask HN: Is depleted uranium being spread from the Khmelnitsky explosion?
The EU radiation map site doesn't provide a link, but you can open the station with ID UA33429, which corresponds to Khmelnytskyi and see that the background radiation went from approx 100 nSv/h to 155 nSv/h. I can only look back to 10th of April and don't see a peak higher than approx 110 nSv/h, with the average hovering around 100.
kavalg··on Ask HN: Is depleted uranium being spread from the Khmelnitsky explosion?
Actually I am not that much concerned about (gamma) radioactive risks, but more about toxicity or DU. As far as I understand it, the latter comes from both uranium being a toxic metal and the alpha particles emitted from the dust in close proximity if inhaled or ingested.
kavalg··on Google appears to be scaling up the ads it shows to Gmail users
Sure, but for how long?
kavalg··on Bank Failures Visualized
Yes, but here the issuer is strongly related to the levers of interest rates and money supply which directly impact the long term value of the issued bonds.
kavalg··on Bank Failures Visualized
However, this time it looks like the government failed, not the banks. If you look at the US government (bonds) as just another business the bank can invest in, you can't help but notice that the business had not been very well managed. It promised that bonds will keep their value, but they did not (currently at market price and in the future, due to their yield suffering from inflation). We still don't have a clear message on the situation with government debt as well, but we are probably headed towards more inflation and/or some (hopefully soft) default(s). And as always, fewer people will have more assets/control and the rest of us will pay the bill.
kavalg··on Making friends as an adult is hard (2021)
To me it is more like that I already have good friends and I barely get enough time to stay in touch with them. So a new friendship must make space by "deprioritizing" some of the existing ones, which feels bad.
kavalg··on Hyperspectral camouflage is needed to hide from new electronic sensors
Good luck hiding in the far infrared 10-15 um when the weather is cold
kavalg··on Making Python faster with Rust
For this particular code, vectorization and some acceleration library, such as JAX, may be a better path to optimization. Otherwise an excellent article!
kavalg··on EU countries approve 2035 phaseout of CO2-emitting cars
second step, raise cost of public transport :). Already happening where I live.
kavalg··on For the first time, the Fed is losing money
Correlation vs Causation
kavalg··on Reasons the banking crisis isn’t a repeat of 2008
Up to the fractional reserve limitations
kavalg··on America’s banks are missing hundreds of billions of dollars
Consumption is driven by the availability of money in the form of income/stimulus or credit.
kavalg··on Web fingerprinting is worse than I thought
Indeed. The IP looks like a strong signal in the overall game of fingerprinting.
kavalg··on Torch.fx.Transformer – symbolically modify PyTorch modules
How different is this from JAX in practice?
kavalg··on The FBI Just Admitted It Bought US Location Data
at least not in a direct way :)
kavalg··on Who owns private home security footage, and who can get access to it?
Some time ago police asked for data from my cameras. They did not present a subpoena, but were very open and clear about the purpose (a car has been stolen on the street next to the building) and the time span (2 AM - 3AM). We looked at the footage together, found nothing and they went away. I could have very well told them that they need a subpoena, but that could easily backfire. I could also have told them that the system is out of order, or even destroy the footage if I had something to hide. You can't do any of the latter if you data is uploaded to a cloud provider.

Unfortunately DIY security cameras are usually based on old hardware and lack the AI goodies of new systems (e.g. semantic event detection).

kavalg··on How a heat pump works
I am a happy user of a DYI air source heat pump, that I've been using for 8+ years, mostly for heating in a residential building.

First, it must be told that an off the shelf AC unit is technically speaking also a heat pump. There has been this distinction (and confusion) between AC units and (mostly) ground source heat pumps because, you know the latter actually have a water 'pump' to circulate fluid in the ground piping. Ground source heat pumps are far more expensive that AC units and are nearly impossible to retrofit in existing buildings. Hence, companies came up with a 'middle ground' solution, called air source heat pumps. In these devices the outdoor unit is much like an outdoor unit of a split type AC, but the indoor unit is basically a refrigerant/water heat exchanger with a water pump and some sensors around it. There is also a monoblock type of air source heat pump, where all components are in the outer block and you only connect the piping.

IMHO, the reason air source heat pumps are becoming popular now is because their price went down considerably during the last 5 years, whereas the price of fossil fuel heat sources has gone up. Back then when I had to choose between a gas boiler and a heat pump, the boiler was around EUR 2, off the shelf heat pump (24000 btu) was around EUR 7k and for the DIY option I paid a total of EUR 2.3k. The reason for this was that the market for air source heat pumps was underdeveloped and companies (e.g. Mitsubishi, Daikin, Fujitsu) were charging a lot more in this market segment (rich people with new houses). At some point in time, people started realizing the benefits of a heat pump over a normal AC (less units, no noise, nor air currents, better efficiency, can produce hot water, heating is decoupled from the source and more sources, such as solar can be seamlessly plugged in). Manufacturers albeit slowly responded to this demand.

Now with solar power gaining more traction, they are becoming a very obvious choice.

kavalg··on Open source implementation of Google's MusicLM in PyTorch
I am not arguing that it won't be successful, just that I don't like it at its current stage of progress. Actually most of the music that people hear our days is nothing special either (either quite dumb or just a rinse-repeat of some older successful musical forms).
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