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bad_alloc

1,447 karma · joined December 28, 2009

Programmer and roboticist at university.
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bad_alloc··on I don't need your query language
Also important: The behaviour of SQL is well understood, a new query language always introduces the risk of defects in the query language itself or developers making mistakes in an unfamiliar language.
bad_alloc··on How the brain processes German and Arabic
> For instance, to pick German again, when "caching" certain parts of sentences for later processing, which does not exist in other languages.

Do you have an example for this?

bad_alloc··on Why not tell people to “simply” use pyenv, poetry or anaconda
If the provider of requirements.txt did their homework, yes. However I often got incomplete requirements files or they contained mutually incompatible versions (numba and numpy soemtimes dont get along).

(This is in academia btw)

bad_alloc··on Killing Community
> You’re in a train station, you’re not part of it.

This makes a lot of sense. Then again, people flock to the largest communities because that where they are most likely to get quick answers or just find a stream of novelty. Being in a small forum feels like "missing out". I think the fediverse can solve it, if it allows for aggregated communities.

bad_alloc··on Rheinmetall pilot project for curb stone chargers for EVs
You'd need a user-safe way to plug and unplug a 400V to 800V battery if you want to directly supplement the main battery. Otherwise you are looking at additional hardware to convert the voltage.
bad_alloc··on Rheinmetall pilot project for curb stone chargers for EVs
We don't need difficult to fix, hard to clean chargers in every curb. We need maintainable chargers which are gauranteed to work in some convenient location. Ideally 11kW to 22kW chargers at work and shopping places and proper fast chargers at every highway stop. This will cover most drivers needs, as daily charging is not needed. What is important is to have every location always have free charging spots, since arriving to find a single charger occupied or broken is one of the most common frustrations of finding charging spots.

Source: I drive an EV all the time.

bad_alloc··on Juice’s RIME antenna successfully unjammed
Yes, especially since these machines need to resist vibration anyways at launch. A vibration motor might be a good inclusion, although it could be the required rotating mass busts some mass budgets. A more complex second option could be a small cubesat which tags along and can bump into or poke at some components.
bad_alloc··on Language models can explain neurons in language models
Nope, reading the printed paper on... paper. :)
bad_alloc··on The lesson about the end of nuclear in Germany
Not usable without desalination and far away from most reactor sites.
bad_alloc··on The lesson about the end of nuclear in Germany
While people continue to push nuclear as a silver bullet, the painful fact is that nuclear won't be reliable enough in the dry Europe we are facing: Italy, France and Spain are in extreme drought and France in particular had to shut down nuclear power plants due to lack of water. In Germany rivers are also low and having plants like Isar 3 evaporate 770L/s is not sustainable in summer.

Wind and Solar can be intermittent but the drought is here to stay. A flexible system which reacts to electric availability is needed for the future. Wasting water in huge cooling towers will threaten food security.

bad_alloc··on The Zombie Comeback of Analog Computing
What is dead may never die!

Also noteworthy in this context: BEAM robots, which are mostly analog circuits that implement some behaviour like light-seeking with minimal components:

https://en.wikipedia.org/wiki/BEAM_robotics

https://smfr.org/robots/

https://hackaday.com/tag/beam-robotics/

While BEAM has always been more of a soldering exercise and artform, many interesting principles applicable to general robotics are buried there.

bad_alloc··on The EV Transition Is Harder Than Anyone Thinks
Last summer I did a 4200km roadtrip in my 41kWh Renault Zoe from southern Germany to northern Spain. The car is *absolutely not* built for long range. There were significant gaps in the charging network in some regions. The terrain was largely mountainous and traffic was fairly bad.

Despite all this, the trip was great: The car never was a limiting factor and always could go further than me as a lone driver (maximum daily distance: 660km). With 2 apps, google maps and some planning while charging it was possible to reach basically every place I wanted to go. Unlike the dozens of broken down ICE cars i saw, the Zoe had zero issues. The only problem worth mentioning was a company called EDP supplying too few and totally unreliable chargers in Asturias and Galicia.

With a car with a longer range charging on the highway becomes less and less important, so as long as there are plenty of 11kW chargers in cities for overnight charging or 300kW chargers for day charging (solar!), EV use is easy and already 100% usable. If you can charge at home for your daily commute and we are smart about the timing, I see few issues here.

bad_alloc··on Evolution of tree roots may have driven mass extinctions (2022)
Between this and cyanobacteria causing a catastrophic (for them) oxygenation event some billion of years ago, many species seem to have causes mass extinctions, with us being the last (and quickest) in this chain.

Is this another potential "great filter"? Evolving lifeforms can randomly find ways to kill an ecosystem.

bad_alloc··on Discord, or the Death of Lore
Maybe we do, but the mass of people who are just learning is enormous. The idea of keeping this information open and searchable is a cultural thing, and big companies actively undermined this culture with their walled gardens. They became the norm for a vast part of the population. The question is: Can this be reversed?

The mess with Twitter moved a lot of people to Mastodon, we need more events like that.

bad_alloc··on Restoring a Vintage Rolex GMT
> there were seemingly a lot more tolerances built into the designs.

Tolerances for good(!) watches are in the range of 0.01mm to 0.001mm for some components. With polishing and a lot of testing this can be achieved on manual machines.

bad_alloc··on Human Chess is a chess variant where playing the top engine move is forbidden
The lowest level might finally make the Bongcloud opening viable:

https://www.chess.com/blog/AcceleratedPog/bongcloud-opening-...

bad_alloc··on 'It's like living in an igloo' People are turning off their heat as prices surge
Common issues you face when getting a heat pump:

* Few suitable places to install it

* Lack of qualified workers to install it

* Limited availiability of heatpumps

* Conventional heaters do not work well with heat pumps. Floor heating is preferred and also not easy or cheap to do

* Not enouch capital to finance it, despite it making economic sense.

I got one, it's great and they should replace oil and gas heating for sure. But these problems can keep people away from them.

bad_alloc··on Forgetting the Asbestos – how we lose knowledge and technologies
Ironically we might have also forgotten the massive cleanup that was needed for or buildings to either remove or permanently bind asbestos. How do you drill a hole into a wall, do maintenance on cables and pipes or tear down a building when it might emit enough asbestos needles to give you cancer at any disturbance? It is not sustainable.
bad_alloc··on Battery-free wireless imaging of underwater environments
Do you have a link to that video?
bad_alloc··on Nuclear energy is clean
We saw another downside of nuclear power in Ukraine: When Russian troops attacked towards Enerhodar and there was shelling in the area the safety of the reactor could not be guaranteed. In the end, containment can be guaranteed w.r.t to internal accidents but no facility can ever be safe from outside issues like war, natural disaster or politics.

Solar has less single points of failure and if it fails not much happens, like in the case of the stolen solar power plant (https://en.wikipedia.org/wiki/Tokmak_Solar_Energy).

bad_alloc··on FDA Denies Petition to Ban All Phthalates in Food Packaging
What caused this change? Regulatory capture? Political reasons? Good old corruption?
bad_alloc··on Coinbase lays off around 1,100 employees
Some crypto collapsing does not mean it is a recession. The exploding prices for real goods and less and less people being able to afford basic things are the indicator for that.
bad_alloc··on Pedal Me bans staff riders from wearing helmets for safety reasons
> Why is it okay for you to set the acceptable risk bar and steal boards from anyone that doesn't agree?

For the same reason we enforce seatbelts in cars: Enough people died. Then those who saw them die decided on these rules so we don't need to go through the same pain. The fact that you don't get this shows that the rules work.

bad_alloc··on Breakthrough discovery of the one-way superconductor?
How would that help? Temperature goes up as you go down.
bad_alloc··on Increased cardiovascular events in Israel during vaccine rollout and third wave
It could be the vaccine.

It could be the novel virus and degradation of healthcare services due to overloading.

It could be an interaction of both and unknown external factors.

bad_alloc··on Tokyo’s Manuscript Writing Cafe won't let writers leave until they are finished
The test:

bool halts(function) { // todo: do not halt if function halts, halt otherwise. }

assert(halts(halts));

bad_alloc··on Raspberry Pi Pico: What is this code doing in its boot ROM, line 442?
Looks like hand written assembly code to me. Also the legible function and label names indicate it was manually written. In diassemblies you usually have no such information.
bad_alloc··on I think I know why you can't hire engineers right now
> but none of those tools are easy to use or well documented

Technological + organizational debt?

bad_alloc··on Noam Chomsky on the cruelty of American imperialism
Nature might be like this, but we can maybe build an artificial system which is not.
bad_alloc··on Led by Tesla, EVs drive chip industry's shift beyond silicon
Yeah but in most EVs you need to transform the battery DC current to AC for the motor.
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