1,267 karma · joined February 23, 2014
Russia committed to too many (and often poorly chosen) lines of advance and did not have a plan to keep their units adequately supplied and moving on the approach to Kiev. This meant even in the opening month of the invasion, their plan went south almost immediately and you had infamous miles-long traffic jams on the roads leading south. Their SEAD didn't work. Their soldiers were not told ahead of time that they were invading Ukraine. They didn't want to mobilize ahead of time, so they didn't amass enough forces. Against a large country like Ukraine you don't need to invent a NATO bogeyman to understand why the initial offensive failed. Credit to Ukraine, they did not allow a defeatist narrative to take hold and fought.
ETA: power is absolutely important for Starlink. SNR is very important for shannon capacity and satellite systems are often limited in this respect.
This is why that calculator, even under extremely optimistic assumptions for orbital, and even if you assume launch is zero, still cannot make it competitive with terrestrial.
> No additional mass for liquid cooling loop infrastructure; likely needed but not included
> Thermal: only solar array area used as radiator; no dedicated radiator mass assumed
In hardware and mfg. solvable vs. solved is a big difference. And I too believe that SpaceX's engineers know about radiator panels. But the more cynical interpretation is that whatever the SpaceX engineers think about the technical merits, they are not being asked for that. They are just being asked for a pretext that justifies the xAI acquisition. Elon is also discussing lunar satellite factories that launch the satellites via railgun. Now, is this physically impossible? No, that isn't physically impossible either and I will seriously defend the physical possibility of this. It's not going to happen though.
And you could spend all the engineering costs on building some seriously efficient terrestrial DCs, but somehow all these analyses start with "assume that launch and satellite technology advances manyfold and terrestrial DCs stagnate or become less efficient, then if you squint the two numbers get kinda close."
If you want math then https://andrewmccalip.com/space-datacenters exists. The numbers are grim for orbital DC. Even if you drag the launch cost slider all the way to $1/kg (by the way this is literally sci-fi, per ChatGPT air freight of semiconductors from Taiwan to Ohio costs $9/kg and ocean/train freight costs a bit under $1/kg for a reasonable shipment so good luck with $1/kg to LEO this century) it is still more than twice as expensive as terrestrial DCs.
That wasn't too hard, maybe I'm superintelligent?
And dealing with those pathways individually would be far more productive than attempting to control the proliferation of algorithms that think, which in the long term is probably impossible. It also leaves us on far firmer scientific footing. An individual pathway - bioweapons, nuclear weapons, etc. - is far easier to reason about and accept/reject a notion of feasibility. Treating an ASI as a machine god and asserting futility in face of that god is not going to get anything done.
No one serious is really arguing for a scenario where the machines rise up a la Planet of the Apes. The dangers people are really examining are scenarios of either one exceptionally clever innovation: a designer virus or hacking NORAD; or cleverly amassing economic / political influence over time akin to an exceptionally clever tech magnate. And these roles could adequately be filled by either ASI or a Bond villain.
If this line of thinking is taken too literally, we can never falsify it. Any specific hypothesis - nukes, bioweapons, spontaneously convincing us that life isn't worth living - can be deflected with the objection that if we can anticipate it and prevent it, it is not the route for a true ASI extinction event.
It has proven surprisingly resistant to AI so far - Astra can make a very quick prototype but upon review it had many defects. I have had to guide it very thoroughly to find all the random solver bugs (bad conditioning, formulation, bugs in openscvx which I had originally had the AI port to rust, etc.) preventing well-behaved solves. But I think (hope?) I have turned the corner on these.
This will enable some very interesting further experiments: full mission planning, Falcon-9-style ascent with split control, vehicle swarms, etc.
- OpenAI lying their face off for marketing purposes
- Buckmaster sore about getting beaten to NS, misrepresenting what was told
- Buckmaster not being an expert in ML, not understanding what he was told and hearing what he wanted to hear as it vindicated him
- Others...
OAI claimed that none of the people on their team were domain experts. So it's more akin to Deep Blue than Stockfish (actually slightly better than Deep Blue which did hire domain experts) but nevertheless represents a highly sophisticated automatic theorem prover.