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chris_va

3,612 カルマ登録 13 年前

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1 ポイント·投稿者 chris_va·7 か月前·0 コメント

コメント

chris_va
·一昨日·議論
GAO's task is a bit broader, no?
chris_va
·3 日前·議論
Yeah. I don't think the conclusion is necessarily wrong or that they shouldn't have investigated, but I also think the cost to the taxpayers might increase due to the underlying nuance. The report implies that the guidelines are correct, but doesn't really quantify the counterfactual.

Again, devil's advocate
chris_va
·3 日前·議論
To play devil's advocate, the counter argument is that it's always easy to advocate for more process, and cherry pick examples to support that conclusion.

The actual report basically says that the DOE already requires that they "should identify a need without having a particular solution already in mind", so it is really just an argument that people should follow the written guidelines, and add more process to make sure it happens. The examples in the report are pretty nuanced.
chris_va
·2 か月前·議論
Only if there is a local glass processing facility + consumer (e.g. large brewery, etc) is it worthwhile.
chris_va
·2 か月前·議論
It's really the alkalinity (e.g. the Mg++ or Ca++), which silicate rocks often have (but technically not limited to silicates).

As an aside, we need to dissolve roughly one large mountain into the mix layer (top ~50m) of the ocean to have it fully take up atmospheric CO2. Without dissolving, the reaction is very slow (co2 in atmosphere => slightly lower pH rain => reaction with mostly passivated rock + erosion).
chris_va
·2 か月前·議論
I wouldn't say liquid is "better". The neutrinos don't care from a cross section standpoint.

Uniformity of the light field is going to be different, but that is not my sub-domain.
chris_va
·2 か月前·議論
The size of the detector can be very large, stable, and protected with an ice cap. https://icecube.wisc.edu/science/icecube/

There aren't a lot of places with multiple km of water without things like animal life or other confounders.
chris_va
·2 か月前·議論
Not to disagree, but stacking a series of exposures with a sigma-clipped mean (or similar) should still get a nice image.
chris_va
·3 か月前·議論
I am not arguing either way, but I think you missed the point.

When you give O(20000) people you have a 1-0.9999^20000 (high) probability that that will leak anyway (either 1/20000 people not following the rules, or just the accident/attack surface area).
chris_va
·3 か月前·議論
The poor grid.

The US added basically 0% extra transmission capacity last year.

... Now your local charging station will require a nuclear plant to keep up with ~1MW per car.
chris_va
·3 か月前·議論
For pulsed power, with an optimistic beta of 1, the magnetic field energy is going to be comparable to the heat energy. The house load here seems tied to a static superconducting coil, not a pulsed field.

And can in many cases be much higher than the heat energy (e.g. theta pinch).
chris_va
·3 か月前·議論
The recirculating power for the magnetics should be included (at least for pulsed), as the RTE there tends to drive the design.
chris_va
·3 か月前·議論
This would not pass peer review for a journal as written.

Maybe the conclusion is correct, or maybe not, but as written the methodology is under specified, statistics are not supported, and there too many confounders not addressed. One should not take anything from this without a better write up. Just misunderstanding what n= means is a huge flag.

Since the author is here, I have to ask: Why a blog post and not an actual paper? Why spray this onto the internet without validating the work? Or, conversely, why not caveat the work as exploratory data science?
chris_va
·3 か月前·議論
I am sure there is a great list somewhere of places to see stuff like this (or I can ask an LLM), but I can vouch for

Mines Museum of Earth Science (Golden CO) and The Harvard Museum of Natural History (Mineralogy room, Cambridge MA)
chris_va
·3 か月前·議論
Agreed.

Fun info: The NASA orbital codes include things like photon pressure... from sunlight reflected off of other planets in the solar system. At some point, I think they are just showing off :)
chris_va
·3 か月前·議論
In chess they cannot move onto a spot that would put them in check. If they can make no legal moves, it's a stalemate.
chris_va
·3 か月前·議論
The actual language (I think): https://legislature.maine.gov/legis/bills/getPDF.asp?paper=H...

It explains the intent (to protect consumers/grid from price changes and fluctuation), and bans 20MW+ loads. They forgot to define load, so a behind-the-meter datacenter (zero net load on the grid) still would likely not get permitted even though it does not violate the intent of the law, which is a bit odd.
chris_va
·3 か月前·議論
I think people today are more focused on how OpenAI released a model "too dangerous to release", not that they were right or wrong, as part of the general trend of criticizing OpenAI for not following any of its stated principles.
chris_va
·4 か月前·議論
Invoking ffmpeg, gzip and tar commands is a sort of reverse Turing test for LLMs
chris_va
·5 か月前·議論
Surprisingly, the natively english speaking world is about evenly split on "soccer" vs "football".