211–220 of 668 posts
For scale: The 1960's era US Navy submarine I served on had a 78MW reactor, so 10GW is 128 nuclear submarines
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Some more context, Nuclear power stations can be up to 2GW, offshore windfarms are seemingly hitting a plateau at ~1.5GW, individual turbines in operations now are 15MW. Grids are already strained, 525kV DC systems can transmit ~2GW of power per cable bundle… Adding 10GW of offtake to any grid is going to cause significant problems and likely require CAPEX intensive upgrades (try buy 525kV dc cable from an establishe…
Yeah the path forward here is going to be Apple-like vertical supply chain integration. There is absolutely no spare capacity in the infra side of electrical right now, at least in the US.
This is throwing more cards on the house of cards. Nvidia is “investing” in OpenAI so OpenAI can buy GPUs from NVidia. Textbook “round tripping.” I generally like what’s been happening with AI but man this is gonna crash hard when reality sets in. We’re reaching the scary stage of a bubble where folks are forced to throw more and more cash on the fire to keep it going with no clear path to ever get that cash back. If…
This is throwing more cards on the house of cards. Nvidia is “investing” in OpenAI so OpenAI can buy GPUs from NVidia. Textbook “round tripping.” I generally like what’s been happening with AI but man this is gonna crash hard when reality sets in. We’re reaching the scary stage of a bubble where folks are forced to throw more and more cash on the fire to keep it going with no clear path to ever get that cash back. If…
I'm asking because its not just OpenAI that they are apparently doing this with, instead its with multiple other major GPU providers, like Coreweave.
And its just being done all out in the open? How?
This is throwing more cards on the house of cards. Nvidia is “investing” in OpenAI so OpenAI can buy GPUs from NVidia. Textbook “round tripping.” I generally like what’s been happening with AI but man this is gonna crash hard when reality sets in. We’re reaching the scary stage of a bubble where folks are forced to throw more and more cash on the fire to keep it going with no clear path to ever get that cash back. If…
I (as a uninformed rando) think that there are a lot of research ideas that have not been fully explored because doing a small training run takes 100k. If that drops to 1000, then there is a lot more opportunities to try new techniques.
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Almost every model trained by the majors has paid for itself with inference fees. I’m not saying there isn’t a bubble, but I am saying if the researchers and strategists absolutely closest to the “metal” of realtime frontier models are correct that AGI is in reach, then this isn’t a bubble, it’s a highly rational race. One that large players seem to be winning right now.
> Almost every model trained by the majors has paid for itself with inference fees. Even if we assume this is true, the downstream customers paying for that inference also need it to pay for itself on average in order for the upstream model training to be sustainable, otherwise the demand for inference will dry up when the music stops. There won't always be a parade of over-funded AI startups burning $10 worth of tok…
In accounting terms, this is a shady business practice known as "round tripping" where you invest in a company for the sole purpose of them buying your product. It allows you to count your revenue multiple times.
I don't really understand how it is round tripping. In the end, Nvidia will have OpenAI shares, which are valuable, and OpenAI will have GPUs, which are also valuable. It is not fake revenue, the GPUs will be made, sold at market price, and used, they are not intended to be bought back and sold to another customer. And hopefully, these GPUs will be put to good use by OpenAI so that they can make a profit, which will…
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Your question is weird. Solar does compete economically with methane already, and it's only going to improve even more.
If true, why aren't we mass scaling it all over the American West? We have railways running from West -> East, why not include power lines that can take power from energy farms in the West -> East? No major project in AZ, TX, or CA to give a city free power? etc
Firstly, there is no such thing as an infinitely scaling system.
Secondly, because power transmission isn't moving freight. The infrastructure to move electricity long distances is extremely complicated. Even moving past basic challenges like transmission line resistance and voltage drop, power grids have to be synchronized in both phase and frequency. Phase instability is a real problem for transmission within hundreds of miles, let alone thousands upon thousands.
Also that infrastructure is quite a bit more expensive to build than rail or even roads, and it's very maintenance hungry. An express built piece of power transmission that goes direct from a desert solar farm to one of the coasts is just fragile centralization. You have a long chain of high-maintenance infrastructure, a single point of failure makes the whole thing useless. So instead you go through the national grid, and end up with nothing, because all of that power is getting sucked up by everyone between you and the solar farm. It probably doesn't even make it out of the state it's being generated in.
BTW the vast majority of the cost of electricity is in the infrastructure, not its generation. Even a nuclear reactor is cheap compared to a large grid. New York city's collection of transmission lines, transformers, etc. (not even any energy generation infrastructure, just transmission) ballparks a couple hundred billion dollars. Maintenance is complex and extremely dangerous, which means the labor is $$$$. That's what you're paying for. That's why as we continue to move towards renewables price/watt will continue to go up, even though we're not paying for the expensive fuel anymore. The actual ~$60 million worth of fuel an average natural gas plant burns in a year pales in comparison to the billions a city spends making sure the electrons are happy.