Viewing profile — deepnotderp
deepnotderp
HN member- Joined
- Thu, Nov 03, 2016, 2:55 PM UTC
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About deepnotderp
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Recent public activity
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Comment #46449188
> t also required just the right combination of natural resources (coal) and economic conditionsL deforestation This argument is repeated often, but I don't think it's really true.…
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Comment #45662281
It’s difficult to cmp diamond is the issue I’d assume
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Comment #45587801
Yay for fracking! Yay for natural gas!
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Comment #45454191
New hardware could greatly reduce inference and training costs and solve that issue
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Comment #45194832
Yes but one of the reasons that coal is being replaced by gas is because of the capex of the steam turbine
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Comment #45189169
Oh my bad, you’re right Re: Nat gas, agreed, it’s not solar though, storage is much more expensive Thermal energy still needs to drive a turbine to generate electricity
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Comment #45189146
Sure, but conventional DRAM endurance is 10^15 or more
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Comment #45186566
$3/GJ is $108/MWH which any large scale fission buildout would easily beat for thermal energy costs
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Comment #45186271
10^11 cycles is not “practically unlimited endurance”, that’s less than a second of use at 1 GHz
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Comment #45177513
Thermal storage has very poor discharge rates unfortunately (usually slower than a day), as well as surprisingly high cost once you factor in inefficiencies and turbine cost
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Comment #45079728
MCF has a bunch of challenges, eg no good pigtail connector, need for rotational alignment, inability to radix (MCF is great for point to point, less good if you want to fan out fr…
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Comment #45016404
They do have higher energy density, it’s just a low power density
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Comment #44637319
This is a lot of words to say “solar + battery lcoe is $70/MWH and gas is $40/MWH, but most places outside the U.S. don’t have access to tons of cheap gas so it’s more expensive th…
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Comment #44459840
FEC latency is >> propagation delays at these distances, so that's probably the dominant factor in most cases
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Comment #43584902
Hyperspectral camera?
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Comment #42533241
We need to move zoning to the federal level like Japan We must decide whether we’ll be a civilization that bows to NIMBYism and stays stuck in squalor or allow building the future.…
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Comment #42503971
Once again nonsense, productivity has been increasing in America over the last 20 years but real wages have not. As always, don’t confuse textbook theory with real life!
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Comment #42503958
Nonsense. “Free trade” here refers to inter-country globalized trade across borders, not free markets within a confine. There’s a much stronger case to be made that industrial poli…
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Comment #42248195
You can actually make curved dies already- there’s a company doing that for image sensors, if you thin silicon down it becomes flexible
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Comment #42241755
No, there’s a class system for laser safety The rating is for you to stick your eyes right up to it for a long period of time and still be fine
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Comment #42241722
The SNR for flash Lidar is really low because you spread the beam out over such a large area. Most automotive Lidar already operate in a “photon starved regime”, ~200-300 photons p…
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Comment #42207245
I enjoy how people are dunking on this by saying “omg this is what happens when engineers dare to have thoughts on other topics” when this is very similar to the theory for CBT in …
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Comment #42153521
Nah, nat gas is cheaper The problem is that not all parts of the world have access to cheap nat gas
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Comment #41897328
There are new dielectric refrigerants that aren’t as polluting, but they’re more expensive