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rpearl

2,114 karma · joined July 10, 2010

I work with glowing rectangles and other shapes.

hn masked email (temporary): clear.quilt6867@fastmail.com

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rpearl··on The fish kick may be the fastest subsurface swim stroke yet (2015)
this is what is done in most major competitions already
rpearl··on Malleable software: Restoring user agency in a world of locked-down apps
you should take a look at TFA; both of those are mentioned in great detail! it's a good read
rpearl··on Ask HN: What are good high-information density UIs (screenshots, apps, sites)?
My mom builds EMR workflows for a major hospital and my father and sister are doctors (both very tech savvy--my sister has a computational bio background for her Bachelor's prior to her MD).

None of them have anything good to say about Epic.

rpearl··on Canon EF and RF Lenses – All Autofocus Motors
EF-M is fairly dead at this point isn't it?
rpearl··on TikTok goes dark in the US
My comments just went right over your head. Didn't comprehend a word I wrote. It honestly makes me sad.

Let's be specific:

In the "Gender" executive order, Sec 2(a) and Sec 3(d), the administration has set it up so that the passport, global entry, social security, or other identity document of any transgender American citizen can be scrutinized, denied in the future, or in an expansive reading, retroactively revoked.

Since all such changes require documentation, there is almost certainly a list of all such people, unless the previous administration was clever enough to destroy it.

For example, a valid document for this man https://www.uri.edu/news/wp-content/uploads/news/sites/16/20... (picked at random, a picture of an openly trans man who has stated as such on a website), can no longer list an M. A document with an M on it is subject to government scrutiny, for example at any border crossing or other location where identity may be verified. The government may now argue that such a document is not valid. If he has no documents with such an M marker, he can no longer obtain them. Additionally, he must use the women's room, per sec (4).

"We're all gonna be okay!" The federal government is simply subjecting trans people to increased scrutiny, limiting their freedom of speech and expression and their freedom of movement. "Nobody's gonna lose their rights."

But hey, enjoy your brisket, right? How's the price of milk doing?

rpearl··on TikTok goes dark in the US
It is day one and trans people can no longer get a federal id matching how they look.

Fuck right off about "gonna be okay", asshole.

rpearl··on Bambu Lab - Setting the Record Straight About Our Security Update
who cares if Panda Touch/BigTreeTech was making money off the ecosystem? it did nothing more than sell more bambu printers. It's not net-zero--money for BigTreeTech is not coming out of Bambu's pockets; I seriously doubt it was net-negative for Bambu.
rpearl··on Homomorphic encryption in iOS 18
I mean if you'd like, you could reimplement the necessary client on an airgapped computer, produce an encrypted value, take that value to a networked computer, send it to the server, obtain an encrypted result that the server could not possibly know how to decrypt, and see if it has done the computation in question. No trust is required.

You could also observe all bits leaving the device from the moment you initialize it and determine that only encrypted bits leave and that no private keys leave, which only leaves the gap of some side channel at the factory, but you could perform the calculation to see that the bits are only encrypted with the key you expect them to be encrypted with.

rpearl··on Map of California roads for cyclers (1895)
Insurance does whatever it can to avoid paying and having an attorney represent you is almost a matter of course.

But please continue theorizing that this zero effort google search you went in to knowing nothing about is instead evidence for a world in which there is a large market for attorneys forcing payment by cyclists causing significant damages.

Next, have your last word because this conversation appears completely disingenuous and I will not be continuing it.

rpearl··on Map of California roads for cyclers (1895)
Okay, I searched. Nearly all of these attorneys are for when you have been injured, on a bike, by a car.

Because that's what happens a lot. Cars are deadly.

rpearl··on Darktable 5.0.0
Darktable may make you better understand the technicalities of editing, but I don't think most photographers want to spend their time learning the minutiae of what specific image processing algorithms get used to achieve their desired effect.
rpearl··on Where can you go in Europe by train in 8h?
> California hadn't been able to build a train a fraction of that distance without delays and squandering[??] massive amounts of money.

It costs money and time to build HSR. Fine. The J(N)R director who ran the shinkansen project literally lied to multiple levels of government to shield the (2x+) budget overruns. He resigned and then within a year of it opening he was given a medal for extraordinary contributions to Japan.

> Because nationwide high speed rail isn't as easy - or practical - as you think.

Who is claiming that it is easy? However, it is practical! It takes 6 hours to drive Tokyo to Osaka; it's 2hr by train. Trains leave every 5 minutes.

A west coast HSR network is just obviously practical! Beijing-Shanghai HSR is 1300km; SF to Seattle would be the same. It'd be 4-5h on a train. Right now it's 2.5 hours on a plane plus a recommended 1.5 hours for security and boarding plus transfers on each side--I'd rather take a high speed train If I could! SF to LA could be ~3h. 90 minutes on a plane plus lead time and transfer times and it's competitive. Again.

> There are US states similar in size to EU countries with comparable rail networks.

Oh, which ones?

rpearl··on Show HN: Run10K Trainer – Personalized Training Running Plans for Your 10K Race
I tried c25k twice and it never clicked. What did was getting a garmin about 3 years ago, running by heartrate and keeping it low, even though the pace was excruciatingly slow (8 or even 9min/km).

You build up from there. It takes years but you get there.

rpearl··on How to Fix the Electoral College
There is no evidence[1][2][3] of any meaningful amount of voter fraud in any modern US election.

States without strict voter id still have mechanisms to ensure people who vote are real people and that they vote once. Strict voter id is security theater, though it does not reduce turn-out, either.[4]

[1] https://votingrights.news21.com/article/election-fraud/

[2] https://www.vox.com/policy-and-politics/2017/4/26/15424270/v...

[3] https://www.brennancenter.org/sites/default/files/legacy/The...

[4] https://www.nber.org/papers/w25522

rpearl··on Optimizing the Ion compiler back end
Wow, that dominator tree algorithm I wrote as an intern (https://bugzilla.mozilla.org/show_bug.cgi?id=666426) seems to have lasted 13 years! At the time we assumed that graphs would be small enough to not warrant the constant factor against Lengauer-Tarjan. ...And of course, browser-based apps have gotten much bigger since then.

Semi-NCA hadn't even been published yet and seems like the clear choice nowadays, so I'm glad to see it in place! Great work!

rpearl··on Launch HN: Modern Realty (YC S24) – AI Real Estate Agent for Home Buyers
I mean the premise of your product appears to be that I'd be interacting with an AI. If I were to use it, I would not be hiring Raffi---would I?

I was in a situation where the seller of the house, after signing our contract, halfway through closing, decided to try to accept another offer that would close faster. The seller attempted to get out of our contract when we wanted to enforce it and close.

An AI wouldn't be calling escrow companies for us. An AI may have a recommendation about whether lis pendens is necessary but it wouldn't be personally taking it to the courthouse before close of day on a Friday. An AI would not be able to watch the property in case the other buyers showed up.

Obviously with a smooth transaction none of this is necessary. Most transactions are smooth, and that's great. But ALL the value of a real estate agent is in the edge cases. I'm asking what would happen to me if I would've used a tool like this instead? When abruptly this sort of work becomes necessary but I've never spoken to a person. In such a time, I don't just want advice, I want an actual agent to help me make a real decision, quickly, and then act on my behalf.

Is that Raffi? How many people is Raffi helping? Is this just Raffi's fancy tech driven real estate office that will be slightly larger than the usual due to leveraging tech?

rpearl··on Launch HN: Modern Realty (YC S24) – AI Real Estate Agent for Home Buyers
Agents are there for the edge cases. We had a contract dispute that required negotiations and even a brief discussion with a lawyer. At one point, our agent was calling title companies in the area to find the _other_ escrow account.

How are you planning on handling cases that abruptly require complexity? At first glance, it looks like using a service like what you are describing would have been an unmitigated disaster and would have cost us a ton of money, and we wouldn't have known that at the start of the process either.

rpearl··on Ever used Google Chrome in incognito mode? You could be entitled to up to $5k
that's very much not true? these things are nearly always contingent fee.
rpearl··on Keep uBlock Origin in Chrome for another year by enabling Enterprise policy
[citation needed]
rpearl··on Axiomatic by Greg Egan
If you like Egan, also try "On the Origin of Species and other stories" by Bo Young Kim. Haven't seen that mentioned here yet
rpearl··on Cutting Board Designer
genuine question: does "cutting board" mean something else? it seems like a reasonably unambiguous term so I'm curious what else it might refer to.
rpearl··on Rent in Cities Skylines 2 was too high, so the devs removed landlords
you are simultaneously complaining about your loss, doing nothing to stop it, and postulating either that you cannot sell(?) or that continuing to seek rent will ultimately be a net profit for you.

I'm not sure what you want to hear.

rpearl··on QBE – Compiler Back End
SSA is more of a control flow representation and is broadly orthogonal to register allocation--you can use graph coloring to allocate registers in SSA and you can do linear scan forms of allocation without SSA.
rpearl··on More doctors are charging fees to respond to patient messages
Typically, when you are talking to a lawyer, you have signed a contract, paid a retainer, and have an explicit hourly rate negotiated for interactions with that specific firm.
rpearl··on [dead]
A good starting point is speech synthesis, particularly diphone synthesis
rpearl··on Why diets backfire: A year after weight loss, the desire to eat grows (2018)
I'm having a hard time imagining eating like this. Can you describe a meal you might eat?
rpearl··on Blood doping and its detection
increased red blood cell count = increased capacity to carry oxygen = increased aerobic endurance
rpearl··on Anki – Powerful, intelligent flash cards
> The issue is: I'm sick and tired of apps that want your web credentials. I want an app that doesn't share anything about me. Completely local.

Anki does not require your web credentials, so it's very well suited for you!

You can create an account if you want to sync your decks between computers or to your phone. It is not necessary or required.

rpearl··on Ask HN: IRS section 174 – cause of layoffs?
The change went into effect in July 2022--and failed to be reversed in December 2022.

https://layoffs.fyi/ shows a sizeable uptick in the number of companies with layoffs since mid 2022, with more of an uptick in early 2023.

rpearl··on 3D Map of Shinjuku Station in Three.js
This does not include the 1km+ underground passageway you can take (exit E1) that takes you all the way through Shinjuku Sanchome station and then out near Golden Gai. I know it's technically a different station but you can get there without ever going above ground.
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