skysight-inc/HackerNews huggingface dataset:
> As seen in the timeline graphic, allowing the step to deploy and retract while the train is in motion would remove this wasted dwell time.

It's interesting... I wonder if extending the step while the train is in motion has the potential to knock people down who's currently on the platform and standing too close to the train.

> since the step itself does not extend over the platform (it reaches only 63.5 inches from vehicle center line when fully extended) there can be no hazard to passengers

I dunno about that. What if they had an umbrella or grocery bag or such dangling over the platform edge?

----

Maybe the more relevant question is how was it done before? Did the old train also have slowly-extending steps? How is it handled in other countries with functional train networks?
It's moot whether or not data is a bad idea, since a large fraction of the time, it's all we have.
> the majority of concert hall pianos are going to stay imperfectly tuned.

Any "important" concert hall will tune the piano before each concert. If there is no concert for months the piano will sit untuned (but still be practiced on), but a piano tuner is cheap insurance that nothing happened. If there are two concerts on the same day they might or might not tune between them.

Of course there are a lot of "small-town" concert halls where the piano is not tuned as often. Your local high school probably isn't tuning the piano before the concert - even though the piano is moved from the choir room to the stage before the concert which is the most likely way to mess up tuning.
Reminds me of `break rust;` causing the Rust compiler to emit an internal compiler error. I wonder which other languages have similar easter eggs.
Oh yeah, bridged mode on my little pentium system brings perf way down. It was fine on 1G, but when I upgraded to 10G and wanted to hit numbers, I needed to stop doing software bridging. For me, I have slots and NICs, so I moved away from virtual ethernet on a bridge to actual ports; main host gets the 10G, and everything else gets to use 1G ports.

No SR-IOV on my board, but that's ok.
There are two main obstacles: actually making a new molecule with a PKS, and getting it to be active enough to make useful and financially viable quantities of a product. Both are challenging.

A substantial fraction of the currently used pharmaceuticals, especially big complex antibiotics are already made commercially at scale with PKSs- but mostly in cases where they are just using the natural organism with its natural PKS.

They are challenging to engineer, e.g. "get parts to work together" in an unnatural order but that has been getting better over time, with lots of recent breakthroughs, and a bunch of new molecules being made, but the production quantities do tend to be low.

There is no fundamental reason why PKSs have to be slow, or make small quantities of things, there are a few good examples of both natural products and engineered PKSs that make things in really high concentrations. So this is presumably something that can be improved over time, but is definitely the biggest weakness, which limits commercial viability right now to high value things like drugs.
At least in the organizations I'm a part of this isn't true. We do look for both specialists and generalists, and focus on experience and how it could apply.

It's difficult to innovate by just repeating what's been done before. But everything you learn along the way helps shape that innovation.
I've been using this for a few months now. Best lifting app out there!
My repo (an image that contained a custom deepfacelab for server) was also disabled.
Gemma explained: What's new in Gemma 2
There's pretty limited passing on the routes judging from the schedule [0]. It looks like there are a couple sections along the corridor where there's an extra rail for passing [1].

[0] https://www.caltrain.com/schedules/pdfs?active_tab=route_exp...
[1] https://hsr.ca.gov/wp-content/uploads/docs/programs/statewid...
Updates can be easily disabled: https://github.com/ohmyzsh/ohmyzsh?tab=readme-ov-file#gettin...

I'm pretty sure that omz is not running their own webserver (correct me if I'm wrong here). It is just doing a git pull to update. [1]

[1]: https://github.com/ohmyzsh/ohmyzsh/blob/master/tools/upgrade...
Directory of people working at intersection of biology and a creative discipline
> makes me appreciate what we have much more. I will complain less about trains from now on

European trains are lovely. But coming from New York, where our regional rail runs with Swiss on-timeness, the tolerance for delays in the U.K. and Germany is wild.
A kid at my high school, who was on the swim team, died from swimming underwater. They did informal competitions to see who could swim the furthest underwater. He was practicing that by himself, and overextended himself, passing out underwater. There were other people in the pool but no one noticed until it was too late.

I'm sure that's not the only case. Between the risk of drowning, and the difficulty for a lifeguard to tell between someone holding their breath underwater vs actually drowning, I'm not surprised a lot of pools have "don't hold your breath underwater" signs.
It Doesn't Take Much to See That the Future of EVs Is Already Here
that's just about all they're good for
I've screenshots of every QR initialisation I've ever used saved to a specific folder and backed up on a usb stick. I also copied a giant QR which is the "copy your auth app" sequence for all of them. I printed that one out.
Have you read the User Guide on these subjects? https://www.haiku-os.org/docs/userguide/en/workshop-filetype...
Python has a whole bit about how it is for "consenting adults" and that's why it lacks public/private visibility modifiers and presumably why it exposes all other manner of metaprogramming magic. If they were worried about "reasonable adults", these other design decisions would be curious. :)
Also a common name as is Phuc.

I had a partner that was a translation coordinator and they would play me this VM from one of the Vietnamese translators, every time he called he would say, “Hi this Phuc, ha ha that is funny to you, anyway …”
> the new trains take an extra 8-10 seconds after stopping at a station to begin opening the doors

Why?
The increase in riders might be worthwhile and part of why Caltrain can now have off-peak trains “run every 30 minutes, rather than every hour”.
Impressive, but I don't think we every determined conclusively whether our EFS problems were caused by throughput or latency.

Also, throughput is going to be limited by your instance type, right? Though that might also be the case for EBS. I can't remember. Part of the problem is AWS performance is so confusing.
Climber Dreamer here: Former RFID Sensor stuff.

I'd love to see a smart Hold that integrates with an app where the gym cann associate holds/grips in a DB inventory - and pull them out and assign them to a boulder/wall & route. The smart holds have simple pressure sensors for knowing when they are gripped, and for how long. Advanced ones measure force/weight.

Just walk in scan the boulder's code to slurp in all the holds to the local table and then you have them all ping back to the app with every touch. and map your route and exactly telemetry applied using route. So it shows you the wall and the grips you hit as you went up and how much energy and time spend on each node.

Report climbing timings and accomplishemnets on the Gym leaderboard... have challenges - subscribe to a wall/route/buolder and set a threashold to show you when anyone beats your time etc etc

Strava for the actual climb. (The gym could then have a db of all the positions fastener locations in the facility, and then simply assign a hold to a given slot - each hold has a json of its Spec-Sheet for hold type, rating, syle/whatever metrics climbing geeks geek out on, I mean get a grip folks)

Anyway - it would allow for the local climbing app to them maintain a db history of every route and grip and difficulty you've actually touched. Rate the hold-types, routes, wall, boulder - and have that realtime update across al clients subscribed to a wall or gym. A gym can post new routes and have your app subscribers just get the new table for that route and what grips and their profiles each have.)

Then (the not eco friendly version) is epoxy a BLE tag to a routes holds in the wild and you can have the app point at the climb and ping all the BLEs and learn the route - and have ClimbGps - and it can run it locally with a dynamic table of the BLEs it can sense as checkpoints as you pass them (obviously only timing data could be saved unless you do RSSI/something to get vertical and horizontal pathing by triangulating ...

(built these features in previous varying capacities for different things - but climbing would be fun to do it with as well.

I am sure there are already smart grips out there... but this rappelled into my thoughts like Tom Cruise as soon as I read your post.
We can bring another OOP idea: loose coupling, strong cohesion.

Inheritance can be useful when it captures a single shared aspect across multiple designs. It becomes unwieldy when it captures multiple shared aspects where each aspect may need to change independently.
20 years at google, now thats some F-U money!
The official site has video of it in use.

https://aerc-mail.org/
It's impossible to predict how mediocre it's going to get. Buckle up.
I haven't watched numbers on many of my cars, but my Jetta SportWagen TDI had peak mpg right around 60 mph, at least it did when I had steered the wheel at all since startup ;). The gear ratios are setup to deliver peak efficiency at highway speeds, although you do hit a point where the v squared in drag wins. EV is different, because motors are strictly worse the faster they spin.

Vehicle provided instant MPG data is always a little suspect, of course.
AI scales expert discernment
Why QA Wolf built a multi-agent system for automated test maintenance
In the article, I share 3 principles to follow when building your own. We learned some of these the hard way :)
Advertising is not zero-sum. It is a money multiplier.

To illustrate this, we start from the position that a new business creates net new value in the economy (on top of existing value). This is an economic maxim that must be true otherwise our GDP would never grow from 1770 standards.

Now, the new business has to allocate a percentage of its budget to advertising. It doesn't have a choice in the matter:

1) In a competitive market, not advertising places it at a competitive disadvantage to its rivals who are advertising.

2) In a non-competitive market, not advertising leads to a smaller overall market and a weaker position (loss of market cap and easier to disrupt).

Once the new business start advertising, other businesses become aware of it and either (a) choose to enter the market themselves, or (b) invest in advertising targeted at blocking/reducing this new market. Both cases result in more money spent on advertising. That's the multiplier effect.
> For example, last week the blog pointed out that the new trains take an extra 8-10 seconds after stopping at a station to begin opening the doors

Anecdotally, this is also true of the San Francisco Municipal subway. The subway cars take a long time to open and close doors because there is a mechanical bridge that closes the gap between the train and the platform. This is also a pretty big time sink for the subway system
Battery Swap works. Thank you for coming to my TED talk.

Forget the Gresham's law "bad batteries drive out good" idea, batteries are not a currency they are a use value. Bad batteries will be removed from circulation.

As battery energy density rises, and size falls, the idea that batteries need to be complex and integrated into the vehicle monocoque will retire against the use value of a standard size replacable brick.

Remember we have EV forever now. We're at the model T Ford era of battery vehicle.
> IMHO the article is about "data" as in "personal information", but let's indulge in your generalization.

That is weird on its own, because I don't see how Kay's quote could be in any way about it. I appreciate the article on its own, but in context of the quote and discussion it's taken from, it feels like it's only related because it uses the word "data".
With a craft like that, there is no position hold mode? It's common in almost all autonomous or semi-autonomous systems. Basically, without input from the pilot, the craft will hold its current position. That is, let go of the input or sticks, and the thing will automatically hold its current position.

Crazy to hear that such an expensive boat is basically driven by rate only controllers.
Same! Glad to see it wasn't just me. Trains here have been electric since 1920… EMU units have been a staple since 1990, though some routes still have locomotives of course.

There is no lack of stupidity, however, at the system level. The state owns the rails and procures service from private actors who then manage the traffic more or less successfully. The booking systems are chaotic, the prices are high. It is sometimes cheaper to fly domestically, even though the door-to-door time is longer.

Imagine if the U.S. could get their rail network together... Like really invest in proper, normal, modern trains. Not the tech bro vacuum tube nonsense.
Was it at Microsoft?
More often than not, yes. I’ve worked companies of varying sizes for 15 years and all have done atleast one hackathon a year. Over that time I’ve seen exactly 3, maybe 4 hacks that could have been an amazing product.

In two cases legal said hell no after the prototype. One was mine and the state of hardware and the ux wasn’t good enough to release.

Legal said no to:
Listen to songs for free by taking meta data of freely available radio station recordings (like what’s available for 7 days after broadcast) and just playing the x many minutes of the show that the songs on.

Taking sports f25 sports data and generating a live top down 2d view of the event. Legal said no.

Playing html5 games on a tv using your phone as a controller via a chromecast. You could probably do this now with a QR code and web sockets or something.
I think burned discs are of lower quality generally, so that's the distinction.
it's unfortunately quite gimped, basically UWP-only and running with the system capped to around 1/4th of the typical performance, so it's not really that useful.

if the EU hadn't specifically exempted games consoles, it would be legally incompliant with the gatekeeping requirements.
This is where I really love mainframes. The errors all contain a consistent code and a description. The codes are all published, are easy to find nowadays, and have generally good documentation attached to them.

Here's an IBM example, for just a single OS facility: https://www.ibm.com/docs/en/SSLTBW_2.4.0/pdf/hasa100_v2r4.pd...
While we're at it, if we just built more train-trailer-homes and moved all the Californians into them, we could solve the entire state's housing problems AND get everybody to take transit every day AND improve air pollution. Census counts would become a lot easier too.

Homeowners don't want to move? No problem, just eminent domain them or invent some new CEQA provision by a simple majority vote. It's about time the state learned to use its powers!
Agreed. I think that chatbots will be like a short circuit to the brain's centers that seek out socialization, making one part of the brain happy to keep up the stimulus by chatting away, while the rest of the brain shriveles into loneliness with the lack of actual human connections.
I don't think you need AI for this.

The title is actually what Dunning & Kruger found in their paper. Poor performers have no idea the difference between a poor performance and a good performance. If they knew how bad they were then they could tell the difference between good and bad. And of course, because of how quantiles work, there's going to be 50% of people in the bottom half.

(The classic usage of Dunning-Kruger effect to mean poor performers rate themselves higher than good performers isn't what the paper is about and you're welcome to read it [1])

[1]: https://www.hep.ucl.ac.uk/~eo/stuff/unskilled%20and%20unawar...
The track still has a hard speed limit of 79mph from the rails themselves, so much of the savings is in acceleration and braking.

Since adding stations costs less time now, I guess they decided these extra two
were worth it.

edit: rules around level crossings may also have something to do with the speed limit.
But Atherton has the best polo field of the three in Silicon Valley!
Ah, sorry.

I thought this was a firebase alternative in the sense that it's an open source library that works with Postgres, but it's a cloud storage service with a nifty frontend.
Sure but that assumes the company itself has sufficient attraction that can overpower the lack of job satisfaction. Maybe you pay more. Maybe your brand is more attractive thanks to PR. Maybe you offer more perks. Maybe the product itself is more appealing. Maybe it's something else. You have to have some other advantage to retain people who aren't satisfied in their jobs.
All wifi is a giant collision domain. Also, each segment of a wired network is a collision domain.

What you are describing is more in line with MPLS or Infiniband.

I agree with you frustration. I prefer to design networks that start routing right at the access port or even using an agent, virtual network port, or VPN endpoint at the client or application (like QUIC), but that is very expensive from a resource standpoint.

IPv6 is also another way to get closer to what you are describing.

In my perfect world, we'd move to something like a mashup of MPLS and HIP (https://en.wikipedia.org/wiki/Host_Identity_Protocol)

If want to study something more "routed" and more point to point, look at private mobile networks (5G).

What we don't want is more layers of abstraction... that's making every slow, brittle and impossible to troubleshoot.
Of course you can. In France, Germany, Italy, Poland you can ask for less ice or no ice. I always do.
Show HN: Funcy – AWS Lambda strongly typed, best practice
Hi,

Please check out my new library funcy. It's really simplified AWS Lambda APIs in my projects, so I thought I would open-source it.

It strongly-types all request parameters, has support for CORS, content-negotiation, security headers, etc.. out of the box and works via a very simply declarative interface with progressive disclosure.

It's currently pre-release, let me know what you think :)
pretty easy for me.
exclusively Carnivore for over a year now.
Oxygen and heat. This is also very cold water.
Awesome photo!
Any interesting stories of you using your own tool to find customers for it?
Which books and blogs are in the Silicon Valley canon
Pianos should not have that - a piano should have a minor 7th that doesn't beat at all. However if you play the key tuned as a perfect minor 7th and use it as the root note for a standard major chord (root-third-fifth) it will sound terrible as the intervals will not even be close. Your choice is have hundreds of keys on the piano so that when you want the chord you select the exact perfect pitch you want (called just intonation), or we have to compromise the tuning of the piano somehow so we can get by with just 88 keys. We have chosen to stick with 88 keys and then use equal-temperment as a compromise so that the key we use for a minor 7th also sounds okay when used as the root note in a regular major chord. The piano overall sounds much worse than perfect, but it is an acceptable compromise. there are other compromises that people sometimes argue are better, whole books have been written on the subject.
vim and midnight commander are TUI

bash and git are CLI
I remember this! So cool.
> Apple Watches/Smart watches/fitness trackers/wearables have really hurt.

Sales in the most expensive category have grown, in the second most expensive category is fairly flat. It's only the cheaper price brackets that have seen large declines.

But even then, I'm not so sure how much smart watches have hurt the overall market. I prefer to wear an inexpensive analog watch and recently purchased a new one (for just the 3rd time in about 30 years). The available variety was absolutely huge; companies like Casio are releasing lots of vintage-inspired watches in the sub-$100 price point.
In contrast, in the metro in Paris, the doors open a few seconds before the train stops, so that the doors are fully open by the time the train is stopped - and passengers in a hurry can jump out while the train is still moving.
I highly recommend the film “The Big Blue” by Luc Besson. One of the best freediving movies based on a fictional story about Jacques Mayol and Enzo Maiorca.

https://en.wikipedia.org/wiki/The_Big_Blue
Silicon Scams: Exposing Lazy Workers and Venture Capitalists with Dr Maggiori
A 50 character capacity QR code requires a whopping 137 bytes to store as a raw image.
Does not really explain what is not compatible? They will not be able to plug in their suits, but what the plug provides? Air or just collecting the telemetry?
"Allow list" is only more "descriptive" to someone that doesn't know what whitelist means. It is generally not considered a problem if you can't guess the meaning of a word from how it looks, most words are like that.

Why does there have to be a slave just because there's a master? That is just one very specific meaning of the word, out of several dozen, and in the git context it was pretty clear that it wasn't used in that sense, but rather something like "master copy". So the master to main renaming thing was especially silly.
Or just have harder tests.
curses and ncurses are specific libraries used while TUI is a more universal term.
What do Prod Managers pivot into?
My experience from 2015ish-2022 was the golden age of PM opportunities in the job market. Friends of mine with backgrounds ranging from engineering to QA to marketing were pivoting into the cushy job of Product Management.

Well that bubble has burst. As companies have tried to build their own in-house competencies that blend engineering with product and higher interest rates have lowered the appetite for the grey area PM’s operate in… so where are all the PM’s going? I’m not talking about the really good ones. They’re just fine. I mean the 80% of bad PM’s that flooded into the role and are now getting laid off or struggling to find their next gig in the career path.
Tangential: Edge Computing is an implementation of ambassadors.
You're right, it's civil rather than criminal, but in the case of some investment companies, like those that sold mortgage-backed securities, it can be enforced by the SEC.

https://www.law.cornell.edu/uscode/text/15/80a-35

That's just one example. I expect that, had they wanted to, the government could have found many applicable laws to go after those responsible for the financial crisis.