IMO, they're bad, but not so bad as "have their brain examined".
While they absolutely do have huge problems at current costs, and I don't trust Musk's estimates for future costs.
It's not implausible that collectively humanity (well, China: it's not like the ESA appears to value cheap launches yet) is going to get launch costs down a lot further, something that makes the question of "how
cheap is cheap enough?" worth asking.
Then you can take a look at the existing constellations and their combined power throughput, look at whatever fraction of that power budget is not radiated by RF/laser output for comms, and trivially that's the power budget with minimal redesign for compute.
IMO all of space is still not good enough to be worth caring about: the moon is about twice the difficulty of LEO, and LEO now getting to the point that we're seriously asking about Kessler cascades; but also in space the waste heat is currently only a problem with no currently-useful side-effects, whereas down here on Earth we have possibilities for using the waste heat as an industrial input, e.g. using DCs as the heat source for district heating, or combining with ocean water to become evaporative desalination (which is otherwise pointlessly energy-intensive).
That, and the arguments about space-based power is as yet still marginal given how hostile an environment space itself is to PV. And PV on the moon doesn't even get the advantages (launch cost or ~24h light) of PV in a sun-synchronous orbit around Earth.*
But it's close enough to not be insane to do a real engineering analysis. Even if the answer turns out to still be 10x more expensive than the ground, which is what I'm expecting it to be.
* Side note: for a while I've noticed that China has production and money to afford to build a global power grid on Earth with 1 Ω resistance the long way around. This would allow 24h PV everywhere from deserts on the other side of the world including across seasons. Less material would be required to do this on the Moon because it's smaller, and also you don't really need to go across the equator so it can be much shorter, but also this would need someone to put an aluminium plant onto the moon that has negligible consumables and IIRC we don't have one of those yet.
Still, if moon-base design were up to me, I'd suggest sending up 1000 km of HVDC cable on some early missions and put a ring around one of the poles, with some PV every 60° or so.
This is still not a sensible design for moon-based compute.
> Furthermore they could have only destroyed only one city if Hiroshima had been an at sea demonstration instead, maybe even destroy zero cities.
Given the immediate response to Hiroshima was disbelief, surely an at-sea demonstration would have been even less convincing than the observable absence of a city?
Even once the Japanese government confirmed that Hiroshima had indeed been destroyed by a nuclear weapon, part of the reason Nagasaki followed Hiroshima was that the Japanese forces estimated the US couldn't have built more than one or two more (they were correct, they just hadn't internalised what losing an entire city meant).
When the USA ceases to be a superpower is different from when it ceases to be a powerful threat. Russia is a powerful threat, despite being only a mid-tier power.
IMO, the USA probably is still a superpower. But the UK and France didn't realise they'd stopped being superpowers until the Suez Crisis, and I suspect the USA will only discover the loss of superpower status in a similar way. Though not exactly the same, given what happened in Vietnam and Afghanistan, let alone TACOing out of using force to take Greenland.
> Why do you believe Hunter Biden being pardoned is on the same level as J6 being pardoned, when the reasoning (accurately) was to protect him from a perversion of the law in turn?
Not to speak for JumpCrisscross, but IMO this could be construed not as "Hunter Biden being pardoned is on the same level as J6 being pardoned" but rather "Republicans will support the end of presidential pardoning because of Hunter Biden being pardoned, while Democrats will support the end of presidential pardoning because of J6 being pardoned".
> So let's keep an open mind, our ancestors were anything but idiots.
Just not so open our brains fall out.
Our ancestors were just like us, but fewer in number and inventing things from scratch. Miasma, spontaneous generation, Newtonian gravity, these were not people being idiots, and even though they have been shown to be wrong they are still close enough to still be useful today. Phlogiston also wasn't idiotic, but lacks utility vs being correct about oxygen.
One of the shared ways we failed then and now is that what sounds true isn't the same as what is true; the modern easy example of this is how easily many of us get fooled by LLMs, and I suspect that's how a lot of ancient religions grew, with additions and copy-errors evolving them to be maximally plausible-sounding to a human mind.
While they absolutely do have huge problems at current costs, and I don't trust Musk's estimates for future costs.
It's not implausible that collectively humanity (well, China: it's not like the ESA appears to value cheap launches yet) is going to get launch costs down a lot further, something that makes the question of "how cheap is cheap enough?" worth asking.
Then you can take a look at the existing constellations and their combined power throughput, look at whatever fraction of that power budget is not radiated by RF/laser output for comms, and trivially that's the power budget with minimal redesign for compute.
IMO all of space is still not good enough to be worth caring about: the moon is about twice the difficulty of LEO, and LEO now getting to the point that we're seriously asking about Kessler cascades; but also in space the waste heat is currently only a problem with no currently-useful side-effects, whereas down here on Earth we have possibilities for using the waste heat as an industrial input, e.g. using DCs as the heat source for district heating, or combining with ocean water to become evaporative desalination (which is otherwise pointlessly energy-intensive).
That, and the arguments about space-based power is as yet still marginal given how hostile an environment space itself is to PV. And PV on the moon doesn't even get the advantages (launch cost or ~24h light) of PV in a sun-synchronous orbit around Earth.*
But it's close enough to not be insane to do a real engineering analysis. Even if the answer turns out to still be 10x more expensive than the ground, which is what I'm expecting it to be.
* Side note: for a while I've noticed that China has production and money to afford to build a global power grid on Earth with 1 Ω resistance the long way around. This would allow 24h PV everywhere from deserts on the other side of the world including across seasons. Less material would be required to do this on the Moon because it's smaller, and also you don't really need to go across the equator so it can be much shorter, but also this would need someone to put an aluminium plant onto the moon that has negligible consumables and IIRC we don't have one of those yet.
Still, if moon-base design were up to me, I'd suggest sending up 1000 km of HVDC cable on some early missions and put a ring around one of the poles, with some PV every 60° or so.
This is still not a sensible design for moon-based compute.
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