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faichai commented on In 2006, Hitachi developed a 0.15mm-sized RFID chip   hitachi.com/New/cnews/060... · Posted by u/julkali
ipdashc · 7 days ago
I have always wondered how this works (along with wire bonding), especially in an economic way.

Chips being cheap makes sense at the lithography / wafer level because sure, you can stamp out thousands of them at once. But once you need to dice them up, bond wires to them, and package them... how on earth do you do that so efficiently that each chip can be sold for fractions of a cent?

faichai · 7 days ago
If you can shine lasers at them to etch out a chip trace, then you can shine lasers to carve up the chip. Just use stronger lasers.
faichai commented on Abandoned villages of Hong Kong   cnn.com/2024/02/13/style/... · Posted by u/keepamovin
ksec · 2 years ago
On a related topic: Anyone want to sign up for a HN meet up in Hong Kong. I have read at least a few expats on HN said to be working in HK. Not sure if there are many more of us.
faichai · 2 years ago
I’d be interested.
faichai commented on OutRun – Open-source, privacy oriented, outdoor fitness tracker   github.com/timfraedrich/O... · Posted by u/27theo
com2kid · 2 years ago
Go do an actual sleep study some time. You'll be hooked up to a ton of sensors, and in the morning a group of doctors pour over the results, and they'll basically vote to decide on what the data means. "Oh this looks like REM".

So, to calibrate a sleep tracking device, you have a person wear the device, while also doing the sleep study. You do this a bunch of times. You train some ML models to try and make the outputs from the sensor data, after processing, the same as the study data.

After some degree of accuracy you declare success.

Now, does it work? In broad strokes, yes. You can (easily!!) see the effect of alcohol on sleep quality. If you have a crap night vs a good night, sure, a wrist based consumer device can figure that out.

Actual details? Eh. I wouldn't trust the devices for anything but directional data.

The more sensors devices get, the better than ML model can be trained.

Now it has been awhile since I last worked on this stuff (I actually just sat next to the people doing the work), so maybe there is some revolutionary new technique out there, but if not, it is still ML models trying to correlate things and match them up to what a bunch of fancier sensors said during studies.

faichai · 2 years ago
Typical watch based sleep trackers and even my Withings sleep pad can’t really track my sleep properly, particularly REM sleep. I think I move too much. I bought a Dreem2 EEG device that measures brain waves and it could detect my REM sleep correctly, and determined that my sleep is actually fine, not great, but good enough.
faichai commented on Cursorless is alien magic from the future   xeiaso.net/notes/cursorle... · Posted by u/todsacerdoti
injidup · 2 years ago
I had bad RSI for ages. What helps me and other comments have agreed is pulling excercises. Specifically I have a bar at home attached to the ceiling. Just hanging from the bar as long as you can and doing that regularly seems to stretch out the right muscles/tendons. Don't over do it but at the beginning I could only do 20 seconds. Now I can hold on for 1 to 2 minutes depending on the day.

I have very little wrist pain any more.

I also have a kinesis pro keyboard and a MX master mouse. They both add to the improvement.

faichai · 2 years ago
Flip side to this, is I’ve had Carpal Tunnel for a while now, had surgery 2 years ago. It’s somewhat better and I am now active at the gym and in general it has helped a lot but extreme gripping such as deadhangs, deadlifts and heavy rows actually aggravates my symptoms. I started using straps for any weight over 50kg and my hands have got a lot better.

I’ve found that when you’re going from (weak, sedentary) => (strong, active) it can sometimes be difficult to discern what activities are good or bad for your pain. Sometimes you need to work through pain to find relief and strength on the other side, but sometimes working through pain just leads to more pain. The boundaries aren’t always clear at the time.

faichai commented on Life After “Calvin and Hobbes”   newyorker.com/magazine/20... · Posted by u/voisin
User23 · 2 years ago
J.R.R. Tolkien himself sold the film rights to United Artists.

Also, for what it's worth, it's hard to imagine a better executor than Christopher Tolkien. He basically spent his entire life serving his father's artistic interests.

faichai · 2 years ago
I honestly find this quite sad. Dude should have lived his own life, but instead lived in the shadow of his father.
faichai commented on Meta is banning people from advertising after running ads for Python and Pandas   lerner.co.il/2023/10/19/i... · Posted by u/reuven
ezoe · 2 years ago
As we improve the accuracy of automation and now the neural network, once laughed as a toy idea, does cough up something half decent, people ask "But who take a responsibility when things get wrong?" My answer is nobody.

These software giants never take a responsibility of wrongful automated result for decades but we keep using it.

Meta doesn't have an incentive to fix this case. It costs them manual labor of many manhours that outweigh the ad revenue from this person.

It probably keep this way.

faichai · 2 years ago
It seems the notions of accountability and responsibility have broken down when it comes to AI. Any given AI should have clear lines of delegated responsibility from an accountable flesh and bones human. Any decision made by an AI should be marked as such and provide a channel for the decision to be reviewed by said human or a human delegate thereof should scope (in Meta’s case) be large. If it’s too much work to manage the reviews, tough shit.
faichai commented on Ask HN: When LLMs make stuff up, call it 'confabulating', not 'hallucinating'    · Posted by u/irdc
BaculumMeumEst · 2 years ago
Similar suggestions have been made over and over, and they've never stuck. "Hallucinating" has already hit mainstream media. It's probably going to stay that way out of sheer inertia because nobody outside of a small group of nerds on hackernews is going to sit down and think about whether "hallucinating" or "confabulating" more accurately describes the nature of the error. The existing term already captures the general idea well enough.
faichai · 2 years ago
Hard disagree. I’m browsing the internet not surfing the Information Super Highway. Mainstream media needs to rely less on allegory once technology becomes mainstream.
faichai commented on Replacing Engineering Managers with AI Agents   engineeringcalm.com/p/rep... · Posted by u/sofiaqt
sarchertech · 2 years ago
"Morning Stand-up Meetings: Instead of traditional stand-ups, engineers log into their systems and provide a brief update by sending a short voice message. EMAI processes these updates, analyzing voice tones for stress or uncertainty, ensuring it can provide resources or assistance if an engineer faces challenges.

Task Allocation: Using real-time data on each engineer's strengths, past performance, learning curve, and even their preferred working hours, EMAI allocates tasks from the backlog. It uses predictive modeling to optimize for both efficiency and team satisfaction.

Conflict Resolution: If two engineers have a disagreement or are blocked by each other, EMAI steps in. Using its vast knowledge base and understanding of human psychology (aided by its training data), it mediates discussions, ensuring a harmonious team environment.

Training & Upgradation: EMAI monitors the latest tech trends. If a new tool or technology emerges in the market, it identifies which team members would benefit most from training and automatically schedules online courses or tutorials for them.

End-of-Day Reports: Every team member receives a personalized report detailing their accomplishments, areas of improvement, and resources for further learning. These reports aren't just data-driven and include motivational feedback designed to boost morale and foster continuous learning."

It'll be a cold day in hell before I work 5 minutes under those conditions.

faichai · 2 years ago
100%. You can pry my people skills from my cold dead hands.
faichai commented on Telemetry   storybook.js.org/docs/rea... · Posted by u/davedx
faichai · 2 years ago
Storybook is one of those projects, like Postman, that has completely lost the plot. It's unclear what objectives they are pursuing but in terms of developer experience they seem increasingly developer hostile. The CSF format is an unreadable joke and doesn't play that well with TypeScript, the number of plugins you need to do anything sane is ridiculous, and this telemetry story is a farce - open source should not skim data by default.

I remember writing a super simple wrapper around Jasmine to do the same kind of thing, and was glad when I could ditch it for Storybook many moons ago. But if I was starting a project now I would probably rawdog it again, Storybook just causes too much pain.

Is anyone aware of any similar projects that are more developer friendly?

faichai commented on Jim Keller and his pioneering work on chip design and architecture   edn.com/the-story-of-jim-... · Posted by u/xrayarx
faichai · 2 years ago
> that eventually disrupted the market leadership of Intel’s 64-bit Itanium chips

Erm, Itanium never had any kind of market leadership. It was a failure.

u/faichai

KarmaCake day416November 1, 2011View Original