hwillis

Scale obviously does not make this more okay; watching many intersections or cell towers is obviously less reasonable than a single intersection or tower.

In comparison: license plates, when in public, are always visible, and very easy to discern from one-another (different state-unique numbers); so in my mind the expectation of privacy is far lower.

Legally, overhearing a conversation is not different. If you are loudly talking about your drug deals in public in front of an officer, they can use that as evidence. A police department could hire officers to stand everywhere in public and listen to every conversation nearby.

Or, more specifically, they could stand conspicuously close to every payphone and listen. The phones are in public; the officers don't need to be uniformed. Practically speaking this is not at all different from wiretapping. That's what the police did in Katz- wiretap a public payphone.

Flock cameras are not in any meaningful sense different from having officers follow around everyone and record everywhere they go. Its irrelevant whether one officer is following one person or if many people are following them, each within their own small area. That would absolutely not be legal without a warrant. The only difference is a private company is doing it and selling it to the police, something that should clearly not be legal.

"some caching gains" is a pretty huge understatement- snipping something out of the middle of the window requires rebuilding the entire context. Thats a shitload of tokens.

Afaik messing with the context also pretty reliably degrades performance still. The model responses reference things that no longer exist to it and it becomes more chaotic.

The real usefulness of parallel or sub-agents is not that they run at the same time, its that they isolate noisy or self-contained context away from the main window.

browsers aren't common either. Standards, formats, and interfaces are, which is exactly what WASM is and what this demonstrates. Native apps don't need a common operating system or even a common core like nix. They just need to support a common interface, like browsers do.

for me the eyes are also showing the unwrapped texture of character's own heads, which is extremely unnerving lol

Totally missing my point.

Say you have bladder pain and chatgpt tells you that is a common indicator of appendicitis. If you go to the doctor and tell them you think you have appendicitis, they will think you are saying your appendix hurts and look for causes of pain in that region. They will not look for bladder-related pain, because you did not tell them what hurts.

Extrapolate that to all the possibilities for all conditions- something that the system is not equipped for. Doctors do not know that bladder pain is a possible indicator of appendicitis because of experience or logic; they know because it is part of their education because the system has learned that over time. The system does not account for people filtering their symptoms through chatgpt.

Further, it's still bad. It still increases the permutations the doctor is required to consider for no reason. Doctors make mistakes- they make mistakes often. Knowing a bit of medicine can be very helpful for patients. Weaponizing them with a predictive text machine is not the same thing.

We have standards of care for a reason. They are the most basic requirements of testing. Ignoring them is not just being a bad doctor, its unethical treatment. Its the absolute bare minimum of a medical system.

I do feel I actually biased the first doctors opinion with my "research."

It may feel easy to say doctors should just consider all the options. But telling them an option is worse than just biasing their thinking; they are going to interpret that as information about your symptoms.

If you feel pain in your abdomen but are only talking about your appendix, they are rightfully going to think the pain is in the region of your appendix. They are not going to treat you like you have kidney pain. How could they? If they have to treat all of your descriptions as all the things that you could be relating them to, then that information is practically useless.

not to mention turning off FSD milliseconds before impact

An earth-like planet orbiting a different star would likely have evolved photoreceptor arrangements which match that star instead.

No, not really- the limitation is chemical, not evolutionarily-driven. Earth is very well lit in infrared, but it's very difficult to make a chemical that is biologically useful for seeing infrared because the wavelengths are just too long. Its very challenging to do more than the most primitive kinds of sensing in infrared. If our sun was much dimmer, we would probably be blind, but if not our eyes would still not see in far infrared. Same goes for ultraviolet- the energy is too high and molecular bonds are too weak. Seeing in visible light is a reversible reaction, but ultraviolet wouldn't be.

What you're saying is true of ocean animals, especially in the deep sea. They don't see red very well or at all, but the evolutionary pressure against seeing red is not terribly high except very deep where food is very limited.

There also is evolutionary pressure on our vision, but it has nothing to do with the sun. We're twice as sensitive to green since it is so common and important, but green comes from photosynthesis and not from the color of the sun. In a way, we are most sensitive to the least important color of light- the color that is not absorbed by plants. The wasted, useless byproduct of sunlight is what lets us identify food.

Plus, we actually basically only see in blue and green. The overlap between rods and red/green cones is huge. "red" and "green" as we perceive them are mostly fabrications of our neural circuits- if we were seeing them how our photoreceptors actually receive light, all shades of green/red would be very strongly mixed together. All shades of red would look significantly green except for the very farthest reds, which would look very dark because of low sensitivity.

From what I've heard from auto engineers I know, using the battery as part of the structure is not really done. Transfering mechanical stresses to the battery is something you just do not do.

This is technically true, but structural batteries are not the same as stressed engines like on a motorcycle. In the latter, the engine fully replaces a frame member with essentially just the engine block. With structural batteries the cells themselves are not taking on any stress (they could, but yeah its not a very safe idea) but the outside containment is stil doing double duty. Its a pretty minor weight savings because the battery case does not need to be as strong as the frame does, but its not fair to say that structural batteries are not done. Even when they are just bolting on to a subframe, they're still usually doing things for frame stiffness.

Molicel's P60 (INR-21700-P60C) weighs 75 grams and can produce almost a horsepower. A 500 horsepower battery weighs less than 42 kg. It stores 12 kWh.

Batteries are not heavy, range is heavy. Range is the sacrifice and sports cars don't need range.

See how they brag about a simpler new steering wheel that is 400g lighter?

As if ferrari -as if all sportscar manufacturers- have not done the same always. Replacing door handles with straps is not new.

The earth is actually a pretty big heat source in space. Solar radiation is a point source, so you can orient parallel to the rays and avoid it. The earth takes up about half the sky and is unavoidable. The earth also radiates infrared, the same as your radiators, so you can't reflect it. Solar light is in the visible spectrum so you can paint your radiators to be reflective in visible wavelengths but emissive in infrared.

Low satellites are still cooler in the Earth's shadow than they would be in unshadowed orbits, but higher orbits are cooler than either. Not where you'd want to put millions of datacenters though.

They don't send repair people into space.

There were five separate flights to service the Hubble telescope. It was designed from the beginning to be repaired and upgraded.

https://en.wikipedia.org/wiki/STS-125

The people of Minneapolis are defending their right to accept foreigners into their community. Do you genuinely think those people are being paid? That all those protestors don't genuinely feel that way? That the majority in that state don't, as the polls say, want those people there?

If you really think that people in Texas and Florida have the right to say who gets to live in Minnesota, why?

skewing their biases in a way that creates internal chaos and dissent, disrupting institutional order, and sewing distrust of thy neighbor.

I don't really have respect for this idea; we do this to ourselves far more effectively than people who frankly have a pretty hamfisted cultural understanding- just as we have of china or russia.

IMO influence over real concrete choices is much more alarming. Someone with household-level information has an insane amount of advantage in an election. You can target politcal messaging street by street to play up the worst aspects of your opposed candidate and the least repulsive aspects of your own candidate.

But if you're in china, the most you can do is try to push towards whatever of the two candidates is least bad for you. And spoiler, zero american politicians are pro-china.

Idk that there's much of a privacy sell vs. messages being encrypted. In the end users are just trusting Apple to actually be securing messages; they aren't going to love that they are trusting dozens of strangers instead of telecoms. Plus, police etc. already snoop on phones by spoofing cell tower relays anyway.

Showcasing it's use on a cruise ship, in a packed stadium

Stadiums will still max out the pipe out of the local area, so I suspect it wouldn't help much. Festivals and cruise ships, where you want to reach people who are nearby (and at a festival, you might even have a good idea via gps which peers are better) are in desperate need of this and idk why apple didnt solve it years ago.

Axial flux motors are difficult and expensive to make.

Motors need to be made of laminated steel sheets to reduce parasitic eddy currents. The laminations need to be thin in the direction of the direction of the flux. For radial flux motors you just punch out a shape and stack a bunch of sheets up. For axial flux you have to wind a strip: https://15658757.s21i.faiusr.com/2/ABUIABACGAAgmviFqAYozvPw-...

Each layer of that strip has a different cut in it, so its much more complicated to make. The shape and manufacturing method typically impacts efficiency; YASA avoids that by spending more money. Efficiency is an unavoidable requirement of high power density- heat is the limiting factor, and going from 98% to 96% efficient means double the heat.

The mechanical demands on the motor are also much higher- radial flux is balanced since the magnetic force pulls the rotor from opposite sides. Axial flux motors are usually one-sided, so the magnets are trying to pull the rotor and stator together with incredible force. That also makes vibrations worse. Extremely strong, expensive bearings are required to handle it. With permanent magnet rotors you need a jig to lower the rotor into place; they can't be assembled by hand. That also makes maintenance more difficult and expensive.

Its freshwater and has to be freshwater because it goes through pipes and/or is evaporated. Corrosion, scaling and fouling are all issues.

Even if seawater was easy to use and datacenters were near the shore, it would produce very saline brine which would be difficult to safely get rid of.

Any discussion of aurora which do not mention space tornados: https://en.wikipedia.org/wiki/Space_tornado

Is inherently incomplete. Not necessarily because they're needed to explain it, but they do need to be brought up at any time possible because they're cool.

Pretty unlikely. Solar is built on cheap land with low demand, and if the land isn't sold then the power is free so why wouldn't you sell it? No matter how high the taxes are, free money is free money. Aside from making it totally illegal it is very hard to reduce the incentive to sell power.

On top of that the subsidies for solar installations are mostly frontloaded, since the costs are frontloaded. Annual tax breaks are transferrable, so they get sold at the beginning of the project to offset investment cost, lowering interest payments. Even removing tax breaks would not make existing installations less profitable.

That's what claude.md etc are for. If you want it to follow your norms then you have to document them.

Lasers and masers are not inherently collimated or straight lines. The only thing specific to lasers/masers is that all the light is the same wavelength. Beam, parabolic and phased antennas are all very capable of making much tighter beams than your average laser.

In fact at the limits of performance lasers (and particularly masers) are quite bad at generating straight beams, because they are quite small sources of light and divergence is inversely proportional to the width of the emitter. It is a misconception that they are low-etendue.

Cruising altitude is ~40k feet or 12 km and the range of the weapon is 2km. The system only works because of all the exposed wiring on quadcopters; everything in a plane is enclosed in a highly conductive aluminum shell and is very well protected. The windows are large enough to let in microwaves, but not very well. Some antennas might be in danger but in general planes are built to survive lighting. It would be a real freak accident for something to break.

Not surprisingly a very common failure mode is that if you induce currents in the coils of the brushless motors

No, that doesn't happen. Currents can be induced in the wires to the motors, but not in the motors themselves. For one thing, the outside surface of the motors is the aluminum rotor which is an extremely effective faraday cage. For another, coils don't act like antennas. Loops of wire in an electric field have the exact same voltage difference as a straight wire.

Shielding helps of course, adds expense and adds weight, the two things that cut into how many you can make for $X and how far they can fly.

Shielding adds virtually zero weight; carrying a spool of fiber optic cable adds a lot of weight. All the drones in Ukraine right now are fiber optic but most of them are unshielded... the reason why is not that shielding is heavy, it's just that there are lots of jammers but very few truck-sized weapons intended to totally disable drones.

That's also assuming it would even work on a drone without an antenna. If these weapons are not relatively broad-spectrum then they will be very sensitive to the particulars of the circuitry, and they won't always work.

How much energy, how long is the pulse, how close were the drones?

1 millisecond pulses and 70 kW continuous usage[1] which is roughly equivalent to the AN/TPQ-53[2]. 2 km range.

Regardless I think the primary challenge with these systems will be energy on site and a surge of it during waves of attacks. Charged up capacitors can only handle so many waves.

That is not how this kind of thing works. Capacitors are a terrible energy source. Their voltage drops off exponentially as they discharge and almost all electronic are very particular about the voltage they require. A railgun wants current and does not care about voltage. Radio transmitters care a lot about voltage.

Regardless, a 70 kW generator fits on a small trailer. Smaller than the weapon itself. It will run for days on a good sized tank of diesel.

[1] https://www.twz.com/land/army-puts-50m-bet-on-next-gen-leoni...

[2] https://en.wikipedia.org/wiki/AN/TPQ-53_Quick_Reaction_Capab...

Does radar or radar reflection not count as "hard"? There's a lot more to electronics and electrical engineering than ICs.

A good N52 neodymium magnet can be 1.5 tesla- MRIs are usually 1.5 tesla. The pull force is around the same too- a steel object will experience say 20g, and 100 lb fishing magnets are not hard to find.

The difference is the size. Even a large magnet only hits that 20g force over an inch or two. An MRI pulls at that force over a full foot or more; equivalent to dropping the object from 20'+. Worse, the MRI starts pulling at 5 or 10 feet away. Objects can experience a tremendous amount of uncontrolled acceleration in fractions of a second.

It's not like a black hole- unless you are trapped under something very large, the crushing force is substantial but not incredible. In fact inside the tube the gradient is actually smaller than the entrance of the tube- you are pulled in strongly, but once inside the tube you are pressed against the wall somewhat less forcefully. Instead it's like an invisible waterfall, and any metal will be swept away in it, fast enough to put holes in you.

The switches are right next to each other and have a very short throw[1]- it would definitely be possible to do them in under a second and it looks possible to throw them together.

IMO that looks like a spot that would be pretty difficult to hit accidentally even if the ward failed. You'd have to push them down and the throttles are in the way.

Doesn't mean the switch couldn't have failed in some other way- eg the switch got stuck on the ward but was still able to activate with a half-throw, and spring pressure pushed it back into off during a bump. But switches generally only activate when fully thrown, and failing suddenly at the exact same time is not really what you would expect.

[1] https://www.reddit.com/r/indianaviation/comments/1lxra3g/b78...

You're massively misrepresenting what I'm saying. I am not dismissing nuclear or suggesting overbuilding solar by 5x. I am responding to someone who is dismissing solar now for the fantastical idea that nuclear is cheaper now. Nuclear is good. Nuclear should replace coal. Shutting down reactors that are not unsafe is ridiculous. We should build breeder reactors. Personally I think even many countries that have reactors should build more, and retrofit existing reactors to have much higher ramp rates a la French nuclear. Countries with no nuclear or hydro or geo base like Poland should definitely build nuclear plants.

But many countries have large amounts of nuclear- many enough to supply most nighttime power. And in almost all countries, solar is by far the best and cheapest immediate option, and those countries should be building as much solar as possible until the marginal return of nuclear or storage or infrastructure for imports are cheaper than just building more and more solar.

I am not aware of any large scale operating exports of solar energy from equatorial regions to Northern Europe, or similar distance.

No country is even close to a solar oversupply, much less a 2x or 5x. If there is no margin, why would those projects exist?

That's just not true, unless you mean resource reserves. Taiwan has the largest NG strategic reserve I know of (11 days) and the US has the largest petroleum reserve in the world at 19 days: https://en.wikipedia.org/wiki/Strategic_Petroleum_Reserve_(U...

Resource reserves are unextracted and not replenished. They are not the same as storage.