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dgroshev

1,774 karma · joined September 30, 2014

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dgroshev··on UK media fails to disclose defence sector links in nearly 60% of cases
I don't think anyone engaging in a good faith discussion would make the conclusion you just made.
dgroshev··on UK media fails to disclose defence sector links in nearly 60% of cases
To add some pretty hard data to this: https://ukdefencejournal.org.uk/fiona-and-irans-role-in-the-...
dgroshev··on UK media fails to disclose defence sector links in nearly 60% of cases
Saying that it's the invasions that created civil wars and suffering in Afghanistan and Iraq is just exceptionally ignorant. Here's a taster: https://en.wikipedia.org/wiki/Human_rights_in_Ba%27athist_Ir...

For all their failures, the allies never bombed cities with nerve agents.

dgroshev··on UK media fails to disclose defence sector links in nearly 60% of cases
You can't just skip the currently present and urgent defence requirements because they're "politically sensitive" and then go twenty years back to support your point.

But even if you want to do that, why don't you go just a couple more years further and argue that Bosnians should've been left to be genocided?

dgroshev··on UK media fails to disclose defence sector links in nearly 60% of cases
This is a luxury belief that requires the privilege of being unbombed. I invite you to explain this to Ukrainians.
dgroshev··on UK media fails to disclose defence sector links in nearly 60% of cases
Do you expect the same standard to be applied to the NHS? "The expert claiming that cancer is bad was employed by the NHS five years ago"
dgroshev··on UK media fails to disclose defence sector links in nearly 60% of cases
"People who have seen the state of the military first hand are saying that we need to fund the military" is not really shocking or sinister.
dgroshev··on Palantir has hired more than 30 senior UK Government officials
Why?

Have you seen what Russia is doing to Ukraine?

What's wrong with a European company working on not letting the same (or worse) repeat in the Baltic states or Poland?

dgroshev··on BYD Seal 08 debuts with Blade Battery 2.0: 1,000km range, 5-min charging, 684hp
> Car ownership costs are the second biggest expense for most households after rent, and self-driving cars cut this in half.

Living in a hostel with a shared bathroom can cut the biggest expense (rent) by more than half.

Would you?

dgroshev··on BYD Seal 08 debuts with Blade Battery 2.0: 1,000km range, 5-min charging, 684hp
Sure, more people would use them, but it doesn't mean that the majority of people would trade normal housing with dedicated bathrooms (that are used only for a fraction of the day) for that. Normal housing market didn't die when dorms were legal to construct.

The savings that can be made from living in a tiny box with a shared bathroom instead of a regular American house are extreme and are much bigger than savings from not owning a car. Do you seriously think that will convince people and we will see the death of dedicated housing units in the near future?

dgroshev··on BYD Seal 08 debuts with Blade Battery 2.0: 1,000km range, 5-min charging, 684hp
You can make even larger savings by moving into a dorm tomorrow. Are you neglecting the numbers?
dgroshev··on How I leared what a decoupling capacitor is for, the hard way
I found Phil's lab content [1] [2] indispensable for just this. Phil is a great communicator and gives in-depth explanations, so I didn't just watch most of his youtube, but also bought his mixed signals course and was very happy with it.

Phil also recommends this lecture in one of his videos [3], which is still one of my all time favourite lectures ever.

[1] https://www.youtube.com/@PhilsLab

[2] https://www.phils-lab.net/

[3] https://www.youtube.com/watch?v=QG0Apol-oj0

dgroshev··on BYD Seal 08 debuts with Blade Battery 2.0: 1,000km range, 5-min charging, 684hp
Do you live in a dorm with a shared bathroom? Most of your home is only used a few times a day.

People buy cars because it's a little bubble of home away from home. They store their stuff in there, it smells like them, and they don't get stranger's vomit on a seat when they want to drive somewhere.

The "people won't buy cars because self-driving" take just completely ignores the human nature.

dgroshev··on F-35 is built for the wrong war
You keep saying "loitering" and then use one way ranges. If "loitering", where does the time on station come from? Are the drones refuelled? Do they land or do they just crash when they run out of fuel? Or is "loitering" just as a buzzword devoid of meaning?

No, prop drones don't "geometrically catchup". Shahed's extreme range achieved by flying really slow, the top speed (which they don't sustain constantly to conserve fuel) is about 185kph, for the maximum flight time of about 13 hours. US carriers officially can sustain 60kph indefinitely, and in practice they can go faster. That means on a straight line a Shahed can only gain 1600km in the absolute best scenario. In reality it's much less, because launching takes time and the average speed is slower.

The capabilities that you're describing are a fantasy.

dgroshev··on F-35 is built for the wrong war
This is just nonsense. An unmanned platform that can stay on station for a significant time and strike at hundreds of miles and have enough payload to deal significant damage and be fast enough to arrive in meaningful time and somehow survive approaching a carrier group (those planes have guns, remember? it's not just SM-6 spam) cannot be cheap because of hard physical constraints like the energy required to stay in the air. There are no such "COTS" platforms, DJI quads don't cut it across multiple dimensions.
dgroshev··on F-35 is built for the wrong war
That's because the modern weapon tech tree is vast and complex. It's not factorio, there are no factories that can switch from producing DSLRs to MWIR cameras. A playdough factory can't cast solid rocket motors. A Tesla manufacturing line can't just switch to welding 10cm steel slabs for tanks. Moreover, those military-relevant processes and techniques require know-how that gets lost if the processes are not run.

Small quad hype is just techbro delusion. Those quads have their place, but the vast majority of the defence toolkit needs to be much more sophisticated. For example, Ukraine is still struggling to manufacture a domestic ballistic missile four years into the war, despite having tons of funding, a ballistic program pre-war, and Western experts willing to help. If western countries stopped low-rate production that normally goes into stockpiles, the timeline to start manufacturing up would be similar.

dgroshev··on F-35 is built for the wrong war
Even a single Group 3 UAS like Shahed is larger than a lot of kitchens. They can't be assembled in civilian houses.

You're confusing short range, highly Ukraine-specific Group 1 quads with long range OWA drones.

dgroshev··on F-35 is built for the wrong war
The US absolutely has air supremacy in Iran. You don't roll out B-52s in a contested airspace. MANPADS have an abysmal ceiling height, they are largely irrelevant short of some very narrow circumstances.

Just for your benefit, stealth coatings and materials (not "paint") are a tertiary defence after shaping and electronic warfare.

Group 3 UAS can't be assembled in homes and office buildings in any meaningful numbers. They are too big. Even Group 2 is marginal. I think you're confusing Group 1 quadcopters with long range OWA drones like Shaheds.

dgroshev··on F-35 is built for the wrong war
Being able to stockpile is not the goal, it's a pre-requisite. Having a serious manufacturing capability helps to scale, but you can't convert an iphone assembly line to ballistic missile interceptors, and especially when you don't produce the interceptors at some low rate. There is a lot of technology and know-how that goes into those capabilities, and both get lost if they aren't exercised.

But that means either trashing the output in a few months (emulating Ukraine), or being able to stockpile.

dgroshev··on F-35 is built for the wrong war
The asymmetry with Iraq goes both ways. In Iraq, the goal was regime change and occupation. In Taiwan, the goal is to disrupt the most difficult type of military operation in existence (opposed landing). No one is planning to roll Abramses into Beijing.
dgroshev··on F-35 is built for the wrong war
The development and production lifecycle _has_ to be long for a country not fighting a current war.

Ukrainian munitions get used up almost immediately. They don't need to stockpile, they are in a steady state wartime production.

On the contrary, peace time countries have to stockpile. A manufacturing line cannot be ramped up from zero to wartime, we need low volume manufacturing to retain the expertise and the supply lines. But that, in turn, means that we have to either trash the entire manufacturing output every few months (which would be insane), or stockpile. The latter option also requires building more capable systems so that the stockpiles are still relevant in a few years.

dgroshev··on F-35 is built for the wrong war
A single F-35, because Shaheds don't have the legs required in the Pacific.

You can fit three Ukraines between Guam and Taiwan.

dgroshev··on F-35 is built for the wrong war
In a serious war drone factories are getting bombed (by F-35s) and there is no need to handle a never-ending stream of drones. The war in Ukraine is special because neither side is capable of air supremacy.

Note that the original article doesn't say anywhere that F-35-like capability is not needed.

dgroshev··on The secrets of the Shinkansen
We had just that in the UK relatively recently! https://en.wikipedia.org/wiki/Metro-landhttps://en.wikipedia...
dgroshev··on The secrets of the Shinkansen
The article correctly identifies positive externalities of railways:

> The railway can capture the value it creates for me by charging me a fare, but it cannot capture the value it creates for those at my destination. As transport infrastructure creates benefits that produce no revenue for providers, free markets rarely build enough of it.

…but then very confusingly argues that railways should be profitable, including on per-passenger basis. A profitable transport system with positive externalities is inevitably either too expensive or under-investing (or maybe both) with respect to maximising the total economic productivity. Ancillary monopolies in real estate and retail might offset that somewhat, but only to an extent.

Similarly, I don't understand why the article speaks positively of the closure of 83 "loss-making lines". The lines being loss-making for the rail company doesn't mean they aren't improving total productivity, as the very same article argues!

Further, they mention the over-crowding in Tokyo later on

> Tokyo’s infamously crammed trains are a symptom of underpriced rush hour traffic

…but somehow blame it on the price being too low, and not under-investment into more capacity by the commercial companies! People commuting less because they can't afford it would be bad for the businesses on the other side of their commute!

I suppose this is the centre-right ideological slant of Works in Progress showing, which is a bit of a shame when it leads to those self-contradictions in the usually quite rigorous publication.

dgroshev··on Artemis II safely splashes down
You're factually incorrect with most of your Kinzhal-related points.

Kinzhal is just an air-launched version of Iskander with a bit better energetics because of not launching stationary from the ground. It's not a magic superweapon.

Its terminal manoeuvring is hardly new, Pershing II was doing that back in the 70s.

The top speed of a ballistic missile (that you're citing) is not the same as its speed in the interception-relevant section of the flight, because atmosphere gets denser and slows missiles down (and manoeuvring slows MARVs down even further). The Ukrainian operators claim that the observed speed was close to Mach 3.6.

The primary interceptor for the higher energy Kinzhal would be THAAD, not PAC-3. Sadly, Ukraine didn't get THAAD.

"Plasma stealth" is a sci-fi fabrication. The US had no problem tracking ICBM RVs with their much higher speeds close enough for a direct hit during a Sprint test back in the 70s.

dgroshev··on Are We Idiocracy Yet?
I'm not being dishonest, I'm being sarcastic. Although I can see that you ignored everything else that I said.

I couldn't care less about "winning".

dgroshev··on Are We Idiocracy Yet?
"I'd love to hear any additional ideas except those that work everywhere because that'd require big changes"

The answer is trivial and well-known: federal-level gun controls (because anything state-level is a joke without hard borders between states), coupled with a buy-back program, amnesties, and real enforcement. There are no school shootings in the UK or Australia.

Unfortunately, there are too many people who'd rather have more guns and more dead kids (and adults) than fewer dead kids and fewer guns around. They'd justify that by talking about "preventing tyranny" or something, ignoring that paramilitaries executing people in broad daylight on camera with no consequences is already the reality of the US today, and guns played zero to negative role preventing that. Coincidentally, there are no such paramilitaries in the UK or in Australia either.

As for "the rights of citizens": there is no such thing as an immutable unconditional right. American citizens don't have a right to own nuclear weapons, neither should they, even though it's perfectly possible to have a very expansive definition of "bearing arms". Plus, the Constitution itself was amended many times in the past, and by now is clearly in need of a major overhaul, as evidenced by the US sliding down in various democracy indices (for example, World Press Freedom Index puts the US under Romania in 2025). So there is nothing impossible or uniquely oppressive about the reforms necessary to stop children being shot in schools, but because it's such a foundational element of identity for so many with a lot of money behind it (the NRA is exceptionally well funded), in practice there's indeed "No Way to Prevent This".

dgroshev··on Missile defense is NP-complete
Again, the unfairness goes both ways: RVs need to carry substantial payloads, whereas KKVs only need DACS and sensing. THAAD KKVs weigh about 50kg; most effective payloads, even nuclear, would weigh substantially more.

Hypersonic gliders can't be nearly as numerous as ballistic RVs because physics, and they are getting their own interceptor (GPI).

I think this conversation would benefit from splitting theatre ballistic threats (evidently, those are now being effectively countered without 30 to 1 ratios) from strategic threats. For strategic threats, the logic is substantially more complex: even 50% intercept rate greatly complicates counter-force strikes and is valuable. In practice, the rate is substantially higher than 50%.

Chevaline wasn't the only program, the US had its own they didn't end up deploying. Both countries concluded that effective decoys end up weighing roughly the same as warheads.

dgroshev··on Missile defense is NP-complete
That goes both ways. Terminal manoeuvring gets difficult as speeds increase, too. Besides, higher tier threats are intercepted outside the atmosphere, where it would be prohibitively expensive (in mass and accuracy) for RVs to manoeuvre.

Your SSPK is way WAY too low. Also, the math on interceptions changes completely with multiple KKVs per interceptor (see NGI).

Decoys don't work even at the highest end (ICBMs), see Chevaline's history and its rapid decomissioning for an example of just that.

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