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kken

1,568 karma · joined January 3, 2013

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kken··on Full Resolution Photo Archive
What is this? It looks like something from Elden Ring

http://aurelm.com/portfolio/aurel-manea-photo-archive/#&gid=...

kken··on If you're interested in eye-tracking, I'm interested in funding you
Well I thought people may be interested in learning what is already out there.
kken··on If you're interested in eye-tracking, I'm interested in funding you
In case anyone is interested: There are plenty of companies around.

Both apple and Facebook acquired eye tracking companies to kickstart their own development.

Here are some Top-lists

https://imotions.com/blog/insights/trend/top-eye-tracking-ha... https://valentinazezelj.medium.com/top-10-eye-tracking-compa...

Its also an active research field, this is one of the bigger conferences: https://etra.acm.org/2023/

kken··on Alfred-40B, an OSS RLHF version of Falcon40B
thanks!
kken··on Alfred-40B, an OSS RLHF version of Falcon40B
so its open source? Where is the link to the weights?

The article was mildly annoying because of many underlines sentences and words that looked like links.

kken··on C++ GPT-2 inference engine
From the same twitter thread, a dense implementation in less than 100 lines of plan C:

https://github.com/davidar/eigenGPT/tree/c

kken··on Apple dives into display-making to cut reliance on Samsung
LEDs tend to change emission wavelength when changing the current. This is quite an issue if you want to combine them in an RGB display, because the human eye is extremely sensitivty to relative color variation.
kken··on Europe to ChatGPT: disclose your sources
I like the analogy, it nicely sets the perspective.
kken··on Germany Quits Nuclear Power, Ending a Decades-Long Struggle
The very article you posted claims its 300mio a month. How dows that compare to 6 billion?
kken··on Germany Quits Nuclear Power, Ending a Decades-Long Struggle
>is happily importing russian gas in the meantime…

No, its not.

kken··on Germany Quits Nuclear Power, Ending a Decades-Long Struggle
The entire concept of the "Energiewende" was implemented without putting the right constraints in place. The conservatives later fumbled it instead of adding the right changes.

What happened is that the subsidies for renewable energy in Germany mostly led to a buildup of a huge photovoltaic industry in China after an initial goldrush in Europe. When they changed the incentive scheme, the German photovoltaic industry crumbled and the chinese one was kept afloat with local subsidies.

For a while, the equipment suppliers in Europe still profited from the boom in China, but where eventually replaced by Chinese ones. In effect, now both the photovoltaic industry and the equipment industry in Europe largely disappeared.

And to add insult to injury, China is considering to limit photovoltaic exports (potentially as a means to counter the semiconductor sacntions):

https://www.scmp.com/business/article/3208206/chinas-propose...

kken··on Germany Quits Nuclear Power, Ending a Decades-Long Struggle
Don't forget that this is complety against current public sentiment in germany:

https://www.spiegel.de/international/germany/germany-sees-ti...

kken··on GPT-4
>GPT-4 can also be confidently wrong in its predictions, not taking care to double-check work when it’s likely to make a mistake. Interestingly, the base pre-trained model is highly calibrated (its predicted confidence in an answer generally matches the probability of being correct). However, through our current post-training process, the calibration is reduced.

This really made me think.

kken··on IHP open source 130 nm BiCMOS PDK with 500 GHz fmax transistors
Nice! I wonder whether there will also be public MPW shuttles?

Also, curious whether open tools suitable for HF design are available that could be used with this PDK.

kken··on Cargo cult science (1974)
Stylistic choice? Isn’t that literally basic html the way it was meant to be used? I think you were supposed to display it in an actual browser window.
kken··on Meta is cutting prices for its VR headsets
It's their social vr app, but meta knows very well that other uses cases drive vr now. Why do you think they are spending billions on acquiring game studios?
kken··on Meta is cutting prices for its VR headsets
Why are you equating Horizon worlds with vr? It's just one of many use cases, and it's obvious that social vr can only work outside niches after mass adoption was catalyzed by other uses cases.
kken··on Meta is cutting prices for its VR headsets
The quest 3 will be released end of this year it a price point that is most likely slightly above that of the quest 2 (500ish ?). According to the leaks, it will have better video path through / mixed reality capabilities and a faster processor than the quest pro and share it's pancake lenses. The only features that are still exclusive to the quest pro would be eye&face-tracking, controllers with inside out tracking and possibility a mini-led display backlight. Probably nothing that people would spend an additional $1000 on.

My guess is that they are trying to clear stock.

kken··on Sam Zeloof and Jim Keller start a new semiconductor fab
Indeed, but I think they oppose the MAGA fab ;)
kken··on Sam Zeloof and Jim Keller start a new semiconductor fab
Found more presentations on the minimal fab:

https://www.industrie-techno.com/mediatheque/6/4/7/000004746...

Slide 17 is a comparison of the concept to a large fab.

kken··on Sam Zeloof and Jim Keller start a new semiconductor fab
Looks like the closed down. I have not been able to find any news though.
kken··on Sam Zeloof and Jim Keller start a new semiconductor fab
>t'd be fabulous if atomic went the Open PDK route like Skywater 130nm: https://skywater-pdk.readthedocs.io/en/main/ but even a setup with a 'here's the fab price list click here to pay us $x'000k and sign our NDA to get access' would be a big step forward. Combined with reduced manufacturing costs it would make it far easier for smaller players to experiment with custom silicon.

Yeah, but the business model of providing accessible standard CMOS technology would not really require building new tools, wouldn't it? I think the appeal would be in being able to build devices in highly customized technology.This would require fast learning cycles at low cost. Not really something a MPW helps with.

kken··on Sam Zeloof and Jim Keller start a new semiconductor fab
Semiconductor manufacturing thrives on econmy of scale. It would be very appealing to disrupt that field by enabling cost effective manufacturing of smaller volumes as well. This is especially true for customized technologies and devices.

There is a very interesting initiative in Japan: https://www.minimalfab.com

I wonder whether this is similar to what Sam Zeloof has in mind? I went through the website, job postings, twitter threads etc. but I am not sure what they are actually trying to do.

There used to be a crazy startup with a simiilar business approach in mind that tried to manufacture devices in small spheres of silicon: ballsemi. Their website seems to be defunct, but there is an article here:

https://ieeexplore.ieee.org/document/838482

kken··on Google employees criticize CEO for ‘rushed, botched’ announcement of Bard
>The real problem is none of these technologies should be put in front of users in a way that might give them a patina of authority or certainty.

Well, it seems that Microsoft has addressed with Bing in a better way than ChatGPT and Bard by providing actual web references.

Sometimes I wonder whether there is generally a mismatch in expectations. People seem to expect the LLMs to output only verified and true information, when it fact it is subject to fallacies very similar to those of a human due to vagueness inherent to written language. I found that if you think of these assistants as an extremely eager and efficient intern, expectations and reality match much better.

kken··on The cheapest flash microcontroller you can buy is actually an Arm Cortex-M0+
I think the main appeal is to work with small devices that have well defined resources. Just consider the popularity of the ATtiny85.

However, low end 32bit devices are also available from reputed suppliers. In fact, STM just announced the STM32C* series which is also aimed at replacing 8 bit controllers.

The cost benefit may only be true for low numbers and when sourcing from distributors. I am fairly certain that the price advantage is much less when talking about actual production volumes

*https://www.st.com/en/microcontrollers-microprocessors/stm32...

kken··on The cheapest flash microcontroller you can buy is actually an Arm Cortex-M0+
I'd guess the main risk is that these are fairly small companies with shaky financials that may go under.
kken··on Chess is booming and our servers are struggling
For some reason, my perception is that random player selection on lichess leads to much stronger opponents than on chess.com in the lower ranks. Probably this is due to the more informed player base on lichess and a large influex of causals on chess.com

The problem is that this only fuels the cycle. Casual players are scared away from lichess, possibly extending the rift between both sites...

kken··on Magic Circle Generator
Well, if I hear the term "Magic Circle Generator" I think of this:

https://ccrma.stanford.edu/~jos/pasp/Digital_Sinusoid_Genera...

(Sorry, maybe I am biased)

kken··on Barnes and Noble's surprising turnaround
Interesting insight and speculation from the comment section of the article:

>Jane Friedman

>Speaking as a publishing industry reporter & observer, I couldn't agree more with your assessment of James Daunt's leadership and business strategy. Unfortunately, the picture isn't quite as bright for B&N as those numbers would have you believe. B&N stores were once quite large (e.g., 25,000 square feet); the new stores opening are less than half that in some cases. And they're largely re-opening stores that closed during the pandemic.

>It's also concerning that during a record two years for book sales (the pandemic was great for book sales of all kinds), Barnes & Noble didn't see the same percentage increase, indicating they've lost market share. Some industry insiders believe the current private equity owner is trying to position the company favorably for sale.

kken··on Ask HN: What is the thing you've built that you regret the most?
Just wow... from their FAQ

>How do workers benefit from WakeCap?

>Workers’ location and activity is identified within the boundaries of a project for the greater good of all involved within the project and to ensure every worker is safe especially when it comes to fall from height detection, ambient temperature extremes, and confined space crowd control, and more. We found that workers responded positively to the technology.

>Do you have proof that it works?

>WakeCap connected 15+ job sites with 2000+ workers per project...Predominately mega construction projects in Dubai and Saudi Arabia.

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