It's a good saying but the literal meaning is not entirely correct anymore.
Climate change has changed the math on tree planting in a few ways.
For example tree planting in your area today may backfire vs 30 years ago:
https://www.scientificamerican.com/article/forest-preservati...
The best time to move your docs to your repo was 30 years ago. But now that they are written by LLMs, tomorrow's LLM will be able to write an even better doc than today's LLM. Nothing is gained in caching them now.
Not necessarily. It's straightforward to make it revenue neutral.
You make it revenue neutral for the average tacpayer. If you want UBI to be $1000/month, you increase the average tax by $1000. The average taxpayer still benefit because even though they don't get more money, they have a safety net.
People making less than average get more UBI than the tax increase, and those making more pay more.
Most people get more money because the median income us a lot lower than the average.
Right, but people with lower incomes spend, and mostly on necessities, I think the idea is that most of those necessities would become more expensive (naturally or artificially due to price-fixing) if the poorest suddenly had more financial power. In the system as it stands, it seems to me like it'd just result in a bunch of money going to grocery giants and their suppliers, landlords, medical, etc.
Most of those are commodities, where the price is set by the cost of marginal supply.
Housing prices should go down. Housing is expensive in places with jobs and cheap in places without jobs. UBI gives people the freedom to move from the former to the latter.
Yeah this is the downstream effect I had in mind. You could say we'd increase supply to meet the demand but that hasn't really worked out with housing for example
Is it straightforward to get Congress to make it revenue neutral? And to keep it revenue neutral? I don't think so. Politicians find "free money for everybody" to be too easy a way of getting votes.
China did 92 launches in 2025. If they only need to put up 500, and if they can put up 22 per launch like SpaceX can, they have the capability now, let alone 5 years from now.
That looks like a very cool option and effort. Like the Chinese balloons that overflew the US in the last (few?) years, it would likely be challenging to shoot down. Otoh, it might cause some diplomatic disagreements about overflight.
There are a number of competing theories in international law, with varying
criteria, to delineate the upper limit delineating airspace versus outer
space. This debate is unsettled. [0]
There may also be some technical challenges having to do with beamforming rf to the vehicle. Starshield like Starlink has the predictability of orbital vehicles for tracking. It would be interesting to understand how a ground station focuses on the solar glider.
To shoot something down at 70,000 ft (21 km) all you need is a conventional military jet fighter, and a long-range rocket, or even a MiG-31 with a conventional cannon. At best you can make these birds cheaper than the rocket + flight time.
Something that flies at the upper edge of the stratosphere, at 40-50 km (160,000 ft) would be hard to reach with currently available means. You can of course fire a THAAD at it, but you can fire a THAAD at a Starlink satellite as well.
Exactly; it's a limited and very expensive capability. Nobody would want to spend it on a $100k stratospheric flying vehicle, if the latter existed. It does not exist though, if you do not count weather balloons.
There might be less societal objection to "satellites in space orbiting the planet" than to "planes flying continuously over the same area," even if both can be used for similar purposes. I'd assume it'd also be easier to disrupt suborbital systems like that than satellites, but I could be wrong.
> Many people believe that the US annexing Canada is a higher probability than either China or Russia doing so. All three are very low probabilities.
I believe those people are being a bit silly, and their position probably comes from a strong dislike of Trump as a person, and not a genuine belief.
Russia annexed a warm-water port and then shortly after attempted to incorporate Ukraine as part of a plan to remake the USSR. The only thing keeping China from taking Taiwan is the United States.
The US has no desire to annex Canada, and it also has no need to. If Canada proposed statehood or even a territory agreement with the US, I genuinely don't think it would even pass a vote.
The US doesn't have a desire to annex Canada; that's very silly. And the reason Russia doesn't have the capability is because of Canada's alliance with the US.
Starlink is redeploying to 300 miles. Many consider Kessler to be impossible at 300 miles. Any unpowered satellite at a 300 mile orbit will deorbit within a couple of months. But a collision means fragments which deorbit faster because they have a higher surface/weight ratio, and because orbit disturbances lower that time considerably. Any single disturbance that raises aphelion lowers perihelion.
Would collisions cause debris to be ejected into a higher orbit? Although I guess as long as the debris does not pick up any significant speed boost, its orbit would be elliptical and would just collide with Earth (burn up on re-entry)?
which has a chart of apogee/perigee of debris. There seem to be examples of debris with _perigee_ above the collision altitude but the vast majority stayed beyond.
I'm not sure every satellite would be exploding in the traditional sense with hot gases expanding.
There would be disentigration when satellite pieces rip through other satellites.
How many satellites carry compressed gas for orbit adjustments?
Maybe there is some compressed gas pushing against liquid fuel and oxidizers, but I don't think the fuel and oxidizers would explode. Shooting tanks of gasoline with regular bullets do not cause explosions like movies would have you believe. Well, maybe pure oxidizers might, would there be enough heat generated by the tank being punctured?
Militaries have to always behave like there is a war coming soon. They might not believe that one is coming soon, but they have to behave like it is. If they don't, they won't be prepared when one does happen.
This is politicians rearming militaries, not militaries rearming themselves. You're right that militaries want to arm, but they've been trying for a very long time, and just been denied, and denied and denied some more.
Falcon-9 first landed in 2015 and was regularly landing within a couple of years. So being 10 years behind means "almost ready to go".
suborbital Yuanxingzhe-1 landed may 2025, and orbital Zhuque-3 was really close to landing in December. Long March 12A also tried in December although it wasn't as close to success.
So if China is 10 years behind, they've caught up. We won't know if they're 10 years or further behind for a couple years more, though.
And while China may be 10-15 years behind on their Falcon-9 equivalents, they're likely less than 10 years behind on their Starship equivalents.
China also had made industry espionage their way to go in these things. They are not even hiding it anymore. It's almost comical how much they copied SpaceX. And I'd be surprised if they hadn't supply-chained themselves into some level of access in all the big aerospace corpos by now. But Europe? Developing this kind of stuff from scratch in a few years without an unregulated messy startup ecosystem and no army of state sponsored hackers? No chance.
Curious - Any sources? Looking at publicly available details and copying them might be intellectually dishonest if it was a piece of coursework, but this isn't an academic research project. Taking features from something that's known to work is the fastest way to get to something working.
If there's actual smuggling of designs or trade secrets going on, I'd be more interested. But if it's just "the rocket looks the same on the outside", that's hardly "industrial espionage".
> China also had made industry espionage their way to go in these things.
They're even espionaging from themselves in the future!
Dude, have you ever _been_ in China? They don't need espionage, they're now way ahead of the world in technology, except in a few areas like biotech research and semiconductor manufacturing.
For the last decade, China has been having more engineers in _training_ than the total number of engineers in the US. Sure, the quality of Chinese universities is not that great, but the sheer number of them has its own power.
Rockets are notoriously complicated, though. Only a few nations even managed to get to the orbit, and not for a lack of trying.
SpaceX is a rare bird - a space startup that actually achieved not just spaceflight, but (so far only partial) reusability of launchers. Most space startups died long before that, including Carmack's Armadillo Aerospace. Given that they are gone, we don't think of them often, but the total graveyard of defunct space startups is quite sizeable.
Russia seems to be slowly losing their space capabilities. The EU still does not have a human-rated launcher. These aren't small entities either.
Getting to space is a dangerous business with extremely thin security margins, where previous experience matters a lot.
I think China will eventually have reusable rockets, but it will take some time.
>China also had made industry espionage their way to go in these things.
Few layman know this but France is one of the biggest industrial espionage players active in the US and Europe, after Israel of course.
In fact, according to Wikileaks diplomatic cables from Berlin quote: "France is the country that conducts the most industrial espionage [in Europe], even more than China or Russia."
Basically, every nation on the planet engages in espionage for its own benefit if they can get away with it. There's no honor amongst thieves.
Singling out China as if they're the only ones doing it, or the ones doing it the most, is both naive and hilarious.
Diplomatic cables are not a source of truth, they are heavily biased. The fact they had to be stolen does not give them more weight. There is a lot of bias in US governmental opinion on french technology that such a small country cannot be so advanced without stealing; opinion which started with the french nuclear and space program. My opinion on those discourses about France, China or the USSR in the past are just mostly propaganda from the US MIC to ensure continued funding.
The first rocket may take off sooner than 2040. But Starlink is not just a rocket, it is a complete business process, with a launch regularity and price. A Starlink satellite's worth of space on a Falcon 9 costs 500k-750k. With about ten thousand satellites, which last about five years, this means maybe a billion and a half per year spent on the space arm of the business, not counting ground stations. If they had to spend, say, ten times this, Starlink wouldn't be profitable today. And that's pretty much reality: the Ariane rocket costs ~$100m to Falcon's ~$15m (nobody knows what Zhuque-3 costs); I think cost per kg is 5000 vs 900. You could get it down to ~1.5B a year by narrowing it to just the latitudes overhead the EU, but then you cut the potential revenues too and have the same problem.
All the airlines, all the trains, and other government-supported entities may have a strategic interest to use a local version of Starlink. But everyone else? I don't think anyone will buy a service that will be 10x more expensive, 10x slower and 10x more energy hungry than Starlink -- this first mover advantage may be hard to beat.
Starlink is equally great no matter where you live :)
But you’re right, in urban areas it should be possible to do better. If you can get 1Gbps symmetric fiber then get the fiber. Sadly in the US it is not always possible to do better than Starlink, even in urban areas. It’s gotten better in the last decade, but many cities are still stuck with really bad options due to bad choices in the past.
Or at least they were while anti-trust still had some teeth. Trump's DOJ is highly unlikely to go after Starlink for refusing to launch for a competitor, let alone another nation's military.
To be future proof for more administrations you don't want a monopoly at any step. you really want at least three competitors at minimum. Large companies in tech have realized this by now since the 90s. Recently TeraWave was launched by SpaceX due to the inherent risk (and this is a direct competitor to SpaceX. See
https://www.cnbc.com/2026/01/21/bezos-blue-origin-satellite-...
What's confusing about that is Jeff Bezos is funding TeraWave to also compete with Amazon who is also launching their own Starlink competitor for satellite Internet?
I’m not even sure that anti–trust laws come into it; they just want as many launch customers as possible. Better to earn some money off of a competing constellation rather than earn nothing, right?
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