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ulnarkressty

1,164 karma · joined December 20, 2020

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ulnarkressty··on The legacy of lies in Alzheimer's science
I feel that sleep will ultimately be the answer and the cure. Personal anecdote - one of my uncles is affected by this disease. One day, my aunt could not wake him up in the morning as hard as she tried. He would mumble and try to go back to sleep. When he finally awoke after 10 minutes of my aunt basically yelling at and slapping him, he was, in her words - "back to the man I used to know". Completely lucid and able to keep up with conversation, remembering everything etc. Two days later he was back to his old confused baseline.
ulnarkressty··on Life lessons from the first half-century of my career
That's an interesting viewpoint, since the usual mantra is 'a good manager protects the engineer' by going to meetings and letting them do deep work without distraction. Maybe in your case she saw the potential of a future lead/manager and wanted to push you in that direction?
ulnarkressty··on Ask HN: Seeking device to normalize audio output for consistent volume levels
I have the same issue with late night talk shows / live comedy shows where the audience cheering is way louder than the host's voice. At some point I tried an AI model to detect and lower the volume of these parts, but didn't get that great detection with the limited training dataset that I labeled manually. IMO Youtube or other streaming platforms should offer this option.
ulnarkressty··on 38th Chaos Communication Congress
I have commented about this in the past and got downvoted for it. There is a reason why virtually all international conferences require presentations and talks to be held in English. If this was a German-only event it would be understandable, however as it is written on their website the CCC congress is "the biggest European hacker gathering and has grown into one of the most important conferences on digital transformation."

Another argument put forward is the existence of English dubs for every video. I have found the quality of these dubs varies a lot, since they are run by volunteers and not people experienced in live translation. In some talks there can be segments without any translation, and in one case the translator even "gave up" because the speaker was talking too fast.

ulnarkressty··on Defensive Communication (1961)
The first pair (evaluation/description) is especially tricky to separate in a management situation. I have seen many times an employee make a mistake and be given proper descriptive feedback, they will take it as evaluative and their performance will degrade due to the added pressure - and eventually be let go. Similarly, if the manager doesn't mention the performance and is unconditionally supportive, the employee will continue to do poor quality work, will be let go and then complain that they were not given enough feedback and the chance to do a better job. It takes real finesse to understand the person, see their potential and set a path for improvement.
ulnarkressty··on Data Version Control
We actually were considering DVC, however for our particular use case (huge video files which don't change much) the git paradigm was not that useful - you need at least one copy of the data on the origin and another one on each system that's doing the training. So in the end we just went with files and folders on a NAS, seemed to work good enough.

A hybrid solution of keeping dataset metadata under DVC and then versioning that could work. This was many years ago though and I would be curious if there are any other on-prem data versioning solutions, when I last searched all of them seem geared towards the cloud.

ulnarkressty··on Self-experiment with L-theanine: effect on sleep and cognition
> This study was not blinded so there could be a placebo effect.

Saved you a click.

ulnarkressty··on We avoid effort even though it can improve our well-being
Could it be an acquired trait? Most 'smart kids' don't need to put in the work to learn (and that's mostly all the work there is for most kids) until they hit college.
ulnarkressty··on WALDO: Whereabouts Ascertainment for Low-Lying Detectable Objects
What would be legitimate civilian uses for this technology apart from [0]? After the 10k drone swarm the other day and the pager attacks all I can think of is slaughterbots, which is genuinely freaking me out.

[0] - https://xkcd.com/2128/

ulnarkressty··on The True Weight of Medieval Weapons – Fact and Fiction
I recommend to go to a medieval fair, there you can touch and handle melee weapons freely to get an idea how they feel. I remember that I once handled a parade sword which had a very thick and ornate blade, my arms were hurting immediately. Then the guy handed me his own short sword which was used in the fighting demonstrations and it was literally like picking up a can of beans: much lighter weight than expected and I couldn't feel at all the "length" of the blade when I swung it around - it was perfectly balanced in the hand.
ulnarkressty··on Role of Deliberate Practice in the Development of Creativity (2014)
> Elite level performers use deliberate practice and credit hard work to their success instead of talent.

> Mediocre performers don't use deliberate practice and credit talent to their success.

The author then implies that deliberate practice and hard work are the key to success. But it could also be the case that elite level performers _are_ talented and they achieve success by exploiting that talent through hard work, while mediocre performers wouldn't achieve the same level of success even if they worked as hard.

ulnarkressty··on The Legend of Holy Sword: An Immersive Experience for Concentration Enhancement
From reading the wiki page I take it to mean hallucinations which one gives greater importance to than they should. Which is sort of similar to what you were describing, I don't think they meant offense.
ulnarkressty··on The Legend of Holy Sword: An Immersive Experience for Concentration Enhancement
By focus do you mean with your eyes? Do you go cross-eyed?
ulnarkressty··on Noisy neighbor detection with eBPF
Back in the day when I used to live in a multi-apartment building someone was being so loud as to wake me up in the middle of the night and I could never figure out who it was. It was an old building so the noise would transfer across many floors/walls. I was trying to come up with an engineering solution to this but in the mean time I got a new job and had to move anyway. Probably a microphone array would work to triangulate the source, but it would also be hard to explain to the police.
ulnarkressty··on Study shows 'alarming' level of trust in AI for life and death decisions
There is no need for a study, this has already happened[0]. It's inevitable that in a crisis the military will use AI to short-circuit established protocols in order get an edge.

[0] - https://www.972mag.com/lavender-ai-israeli-army-gaza/

ulnarkressty··on People can read their manager's mind (2015)
What's lost on HN is that not all people are 5-star engineers with unlimited growth potential. Most are in the middle of the curve, working at companies that can't afford to pay them that well, stuck there because home/family/etc. So it's not a surprise when they try to game the system instead of spending time and effort on improving themselves.
ulnarkressty··on Buy, Borrow, Die – Explained
Maybe it's like the same irrational aversion that people have to shipping fees. Amazon effect for the rich?
ulnarkressty··on Ask HN: What are you working on (August 2024)?
It's a very nice concept and I think it's much better than the held-together-with-duct-tape concepts usually seen in diy bike conversions.

That being said, I am a bit skeptical about your claims to be fireproof. Did you try to start a battery fire inside your enclosure? Aluminum melts at about 600C, while lithium burns much hotter than that.

ulnarkressty··on The guidance system and computer of the Minuteman III nuclear missile
The article states that the system was cooled using a solution of sodium chromate to inhibit corrosion. However the wiki page of sodium chromate states that it is very corrosive. Is it a typo or something?

It's also mentioned that the computer uses one of the first integrated circuits for miniaturization. Do you know if this can be definitely traced to advances in industrial/consumer products? It's a common trope that military research trickles down - so it's a "good" thing. It's not clear if this actually happens or if progress would have been made eventually without the need for these machines.

ulnarkressty··on Using a list to manage executive function
Making detailed lists is helpful to remember what you have to do and prioritize it, but is only one part (planning) of executive function. The other part, actually executing, is arguably harder since it requires more input energy than just writing something on a piece of paper.

For some people the energy required to do the simplest things, like taking out the pot from the coffee maker, is much greater than would reasonably be expected. As a result these tasks seem almost impossible to do, no matter how many times they write it down. Yet, all the advice out there after having written down the task seems to be 'just do it'.

ulnarkressty··on How do you find a good manager?
Given the amount of mediocre managers promoted from good ICs, it would be interesting to see if and how they can actually become competent at managing. Maybe playing the games presented in the paper regularly as a team exercise could actually help. There is often not that much feedback going upwards.
ulnarkressty··on I was an MIT educated neurosurgeon – now I'm alone in the mountains [video]
This is not really true unless there's something _really_ wrong with your back. For run of the mill disk hernia the patient satisfaction scores at 1 year for surgery and conservative treatment are pretty much the same [0][1].

[0] - https://bmjopen.bmj.com/content/6/12/e012938.short

[1] - https://link.springer.com/article/10.1007/s00586-010-1603-7

ulnarkressty··on Advantages of incompetent management
> It is a massively self-evident fact that a lot more money was made during the “principles” period than after.

Is it though? I've seen a lot of claims about this or that management style or company structure to be responsible for huge profits and growth. It's usually a more simple explanation, such as market timing + smart people. Ultimately it's survivor bias. It could be argued that if this were really the case, all top companies would be using it by now.

ulnarkressty··on The Cheapest NAS
I'd say the cheapest NAS would be an external HDD plugged in your WiFi router - most of them have at least one USB port nowadays, with some offering advanced features like photo gallery etc.
ulnarkressty··on The Limited Value of Multivitamin Supplements
...as a mortality benefit for ordinary people. If you are going through various diseases it is absolutely something that a doctor will order, and there's plenty papers to prove positive effects versus sham therapy. Right now I am taking B12 to help with neuropathy and anosmia after a horrible bout of Covid for example.

What I still don't understand is why everyone is talking in 'servings' of vegetables and fruit, instead of cups or ounces.

ulnarkressty··on BYD and CATL aim to launch new EV batteries with 6C charge rate
I'm not into the latest EV power transfer technology, but that's more than the rating of a neighborhood distribution transformer per car. That's an insane amount of power to have someone casually handling. Would there be additional rules like in a gas station when charging up? Those cables and connectors must be massive as well.
ulnarkressty··on The Raspberry Pi 5 Is No Match for a Tini-Mini-Micro PC
Buyer beware - Dell mini PCs also have this problem, they run constantly and are clearly audible in a quiet room. The BIOS doesn't have any options to disable or reduce the RPM, software sensors don't see the fan and if you unplug it or try to undervolt it the motherboard panics and doesn't boot anymore. Had to sell mine away.

Otherwise they're a nice piece of kit. Perhaps someone can hack the BIOS to remove the fan protections.

ulnarkressty··on A most profound video game: a good cognitive aid for research
In general transferring skills through games is quite hard, except for the skill you are actually practicing in the game (i.e. by playing chess you will mostly improve your chess ELO). There is some research going on to broaden this area though [0].

Where gaming and more recently the 'educational' apps one sees advertised on certain websites and youtube channels definitely do help is raising awareness and motivation to the featured scientific disciplines.

[0] - https://link.springer.com/content/pdf/10.1007/s41465-022-002...

ulnarkressty··on 'The big problem is water': UK ebike owners plagued by failing motors
Do you also leave it outside to sit in the rain? I found that bringing a bike indoors (regardless of it being electric or not) significantly improves the lifespan of most parts.
ulnarkressty··on Own a weather station? We want your data
Any good options for bare weather stations with zigbee or wifi connectivity, then let something like HomeAssistant do the monitoring and display?
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