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karkisuni

186 karma · joined December 14, 2016

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karkisuni··on Baseball-sized hail destroys Scottsbluff solar farm
store unreliable energy in batteries and release reliable energy
karkisuni··on SimulaVR's Reaction to Apple
The APIs are mostly cross-platform now, and the SoCs are the same, so the main reason you wouldn't want to just copy a Mac app to the iPad is the touch input. If eye tracking is as good as they say, that's a lot closer to a mouse than touch controls.
karkisuni··on SpaceX is now building a Raptor engine a day, NASA says
Each rocket needs 33 for the booster and 6 for the ship, so thats still about 5 weeks for one, or 10 rockets per year. Will need a lot during development since reusability probably won't work 100% of the time for a while. then their stated goal is having a ton of these things launching for mars, etc.
karkisuni··on Is SLS Worth the Cost?
SLS can get about 27 tons to the moon, Falcon Heavy about 20 tons. Sure, redesigning the plans to handle splitting between two launches is time and money, but two falcon heavies is only ~$300M base price. SLS is a waste even without starship.
karkisuni··on Germany: Crypto held for more than a year will not get taxed
maybe they have a good relationship with their boss and communicate in ways that work for them and match the world we live in? does your boss still communicate with you in formal memos?
karkisuni··on Dall-E 2
it's your language, do whatever you want. unless you're forcing others to use that language, there's zero moral issue. obviously you could come up with a number of what-ifs where this becomes some monopoly or the de facto standard, but that's not what this is.
karkisuni··on Apple’s Universal Control
one workaround for this is to turn off "Automatically join this network" for your office wifi and disconnect from it, but don't turn off Wifi entirely. That way it can still make direct wifi connections to your other apple devices.
karkisuni··on How much load can be served from 1m² of sunlight
Adding the obligatory "what if M1" comment.

Anandtech tested power draw of an M1 Mac Mini and found 4.2W at idle, 26.5W for the average multithreaded workload. 1/3rd idle power and the same power draw while running multithreaded benchmarks compared to the laptop serving a single client. Would be interesting to compare.

https://www.anandtech.com/show/16252/mac-mini-apple-m1-teste...

karkisuni··on Tim Sweeney: Tax bill would likely end founder control of independent companies
jesus christ, yes. Elon didn't become a billionaire including assets until 2012, well after nasa awarded them the cargo contract and two years after Falcon 9 started launching. Before that, he was barely a millionaire after PayPal and his investments in Tesla and SpaceX. This tax wouldn't have affected him at all until both SpaceX and Tesla were relatively healthy with both Falcon 9 and Model S.

There's a reason CEO's at this level take $1 in salary.

karkisuni··on Apple Readies MacBook Pro, MacBook Air Revamps
performance cores are physically larger than the efficiency ones, by about 3-4x. I'm sure there are other tradeoffs cache size like too. So would you rather have 32 performance cores and 8 efficiency or 34 performance?
karkisuni··on Starlink Packet Routing
Ignoring the "0.9" satellites, this says 694 out of 713 launched so far are good. Is 97% success bad?
karkisuni··on Ampere’s Product List: 80 Cores, up to 3.3 GHz at 250 W; 128 Core in Q4
Didn't go too deep into it, but the AMD cpus being compared are different. Anandtech has an AWS-only EPYC 7571 (2 socket, 32 cores each, 2.5ghz), Phoronix has EPYC 7742 (1 socket, 64 cores, 2.2ghz). On top of that, Anandtech is using another AWS ec2 instance and Phoronix is testing on a local machine on bare metal.

Still would be interesting to know what differences caused the gap in results, but their setups were pretty different.

karkisuni··on Suitcase: A macOS tool for deploying GUIs for simple commands and scripts
The "source code" zip has the same files as in the repo. No source.
karkisuni··on After 50 years of effort, researchers made silicon emit light
Five Easy Steps to Becoming a 10x Commenter!
karkisuni··on Tesla races past $100B in market valuation
Unless your commute is >50 miles one-way, there's no need to charge at work unless its incredibly convenient. I use a standard wall plug to charge my Model 3 at home and still I'm back to full in under 12 hours after work. If you want to bring that down to 2 hours, you can get an RV plug or a home EV charger installed.

If there's always an open charger at work, go for it, but I think people still overestimate how often they'll need to charge.

karkisuni··on Tesla's Risky Gamble and the Future of Lithium-Ion Batteries
Every time a page loads, there's a positive quote from one of his readers. This is part 4 of his 11 part series on Telsa. His About page is literally more cliches than not.

Is this a parody? Serious question.

karkisuni··on Tesla drops cheapest Model X, S variants, cuts prices to simplify lineup
genuinely curious, like what? I think they're even more competitive up to speeds under 60. Are you saying quarter mile is just as important? Or that acceleration itself isn't everything in "performance"?
karkisuni··on Starlink – SpaceX’s broadband internet system
watch cpg grey drive on a desolate road in Nevada. can't get much further outside of population in the lower 48 https://www.youtube.com/watch?v=_naDg-guomA
karkisuni··on Tesla Posts Big Quarterly Loss as Its Electric-Car Sales Lag
That was the explanation Elon gave via twitter: "Pana cell lines at Giga are only at ~24GWh/yr & have been a constraint on Model 3 output since July [...] Tesla won’t spend money on more capacity until existing lines get closer to 35GWh theoretical." https://twitter.com/elonmusk/status/1117144865299501056

Not sure I understand the difference in costs between 2 lines at full capacity vs 3 lines at 66% capacity. Obviously 3 lines is an extra 50% on hardware cost, but what's the cost of time to refine and make mistakes (not to mention the lost revenue on producing more cars) on the last 33% capacity? Apparently Elon would rather get closer to 100%.

karkisuni··on Facebook has been paying people to install a “Research” VPN
why would they? they have never faced any real consequences for doing this and it's insanely profitable.
karkisuni··on Project Fi Is Now Google Fi
support for iPhones, but they can't jump networks to whichever is strongest. still nice to have official support.
karkisuni··on SQL Pivot: Converting Rows to Columns
I wish there was something like this in postgres. tablefunc is a lot more complicated than this syntax.
karkisuni··on Amazon is stuffing its search results pages with ads
you're describing Wirecutter and its many clones
karkisuni··on First firing of air-breathing electric thruster
This seems like a big deal. Assuming it could collect more than it needs to keep itself in orbit, it could refuel a tank and skip from atmospheric body to atmospheric body. Something like this could make it to Neptune and back, though it might take an incredible amount of time.

Still, atmospheric fuel scoops were still sci-fi until now, as far as I’m aware.

karkisuni··on Ask HN: Is my career doomed if I don’t become an AI/ML Developer?
Bank teller jobs have actually increased since ATMs were introduced. I don't necessarily disagree with your point, but bad example.

https://www.wsj.com/articles/technology-isnt-a-job-killer-14...

karkisuni··on Show HN: PlaidML, open source deep learning for any GPU
As the owner of a mac with an amd gpu, I'm very excited to see support coming soon. Been wanting to get into ml but been pretty discouraged with all of the popular libraries being cuda-only.
karkisuni··on Firefox Quantum Lands in Beta, Developer Edition
Was about to reply with a snarky link to the windows version of Safari but it looks like they've stopped development! Great point.

Super interesting that building WebKit for windows from source is still supported though: https://webkit.org/webkit-on-windows/

karkisuni··on Firefox Quantum Lands in Beta, Developer Edition
I'm on a iMac 2017 with a 3.8ghz i5, so yeah it might due to the newer hardware.

Interesting that Firefox still scores roughly the same as Safari and Chrome on your machine too. I don't understand why they'd make this big fuss.

karkisuni··on Firefox Quantum Lands in Beta, Developer Edition
Running Safari 11 on High Sierra and got a 90 on the speedometer 2.0 test referenced. Why are they bragging about a 66?

For reference, ran the test with Firefox Quantum on the same machine and got a 68.

karkisuni··on Why Roku’s IPO Will Be Worth Watching
nothing yet but should be announced tomorrow

https://www.apple.com/apple-events/september-2017/

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