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cdjk

1,370 karma · joined November 13, 2012

email: [HN username]@cs.stanford.edu
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cdjk··on Teenagers Stayed Overnight at Their School and Found Hidden Ancient Roman Ruins
... was once New Amsterdam
cdjk··on Claude Opus 4.7
Claude Opus 4.7, on the web at least, really likes the word epistemics.
cdjk··on If you are harassed by lasers
The pulsing macbook leds were horrible. I was in college then, living in dorms or other shared housing where my laptop was always in my bedroom overnight. I got in the habit of putting a dark shirt over it.
cdjk··on Claude Opus 4 and 4.1 can now end a rare subset of conversations
Here's an interesting thought experiment. Assume the same feature was implemented, but instead of the message saying "Claude has ended the chat," it says, "You can no longer reply to this chat due to our content policy," or something like that. And remove the references to model welfare and all that.

Is there a difference? The effect is exactly the same. It seems like this is just an "in character" way to prevent the chat from continuing due to issues with the content.

cdjk··on Get the location of the ISS using DNS
I might drill into this further.
cdjk··on Show HN: Time Portal – Get dropped into history, guess where you landed
This is awesome. I had the same feeling I had when I first played GeoGuessr. It's one of the first times I've seen what is obviously AI-generated video used in a super compelling way. I want to keep playing.

A few super nitpicky comments:

- I dropped my pin for "Seward's Folly" on Alaska. The videos were clear enough that I knew that's what it was, which made me excited. But then it said it happened in Washington, DC.

- It might be sample bias, but I've only gotten events after year 0 (and technically, it went from 1 BCE/BC to 1 CE/AD.

I'd love to play with this my seven year old, but some of the images are too violent. A "PG mode" would be awesome.

cdjk··on GPG and Me (2015)
I gave up on gpg when I couldn't get my key signed at defcon multiple years in a row. If there's not interest in it at defcon, I don't know where else to go.
cdjk··on PyPy has moved to Git, GitHub
I think you mean transcendental.
cdjk··on A Lost Hiker’s SOS Signal Sparked a Wildfire. Now He Must Pay $300k
The one that gets me every time is Parkmoore and Moorepark on opposite sides of 280 in San Jose. I be someone thought they were being clever when they named them.
cdjk··on Australians scour desert for dangerous radioactive capsule smaller than a penny
It’s called Bayesian Search Theory, and is even more interesting when you consider that not finding it at a given location gives you information about where it might or might not be.
cdjk··on Sam Bankman-Fried's secret 'backdoor' discovered, FTX lawyer says
Nah, seems like they'd be more likely to use floats for accounting.
cdjk··on Ask HN: What sub $200 product improved your 2022
haha. I had not seen that. Thank you.
cdjk··on Ask HN: What sub $200 product improved your 2022
The all matching socks strategy breaks down over time. Eventually you need to buy more socks, and the new ones aren't as worn as the old ones, so you end up having to match them anyway. My solution to this is to buy a large batch of identical socks. Then when you need new ones, buy another large batch that are slightly different - e.g. grey hiking socks instead of black, or wool hiking socks that have a slightly different pattern but are still the same style. This reduces the matching problem from matching all pairs to matching into a couple different sets, which is much easier.

I've thought too much about this.

cdjk··on Twitter has re-suspended ElonJet account
Given that it's suspended again - if I create an account that tweets where Elon's jet was yesterday, would that be ok?
cdjk··on Auditory brainstem response distinguishes occasional and constant tinnitus
Well up to 25 dbHL is considered "normal" hearing for an adult. Without a hearing test I wouldn't have known I had any hearing loss.
cdjk··on Auditory brainstem response distinguishes occasional and constant tinnitus
I have tinnitus and hearings aids help a lot. I only have mild hearing loss (35db at high frequencies in my worse ear), but it matches the frequency of my tinnitus.
cdjk··on Is this the end of social networking?
Does anyone remember sixdegrees.com?

https://en.wikipedia.org/wiki/SixDegrees.com

As far as I remember that was the first social media website.

cdjk··on Elon Musk on Remote Work
It’s possible to develop relationships remotely. It takes effort, but doing so in person also takes effort.
cdjk··on Reversing hearing loss with regenerative therapy
This sounds crazy, but try hearing aids. That worked for me. Initially I used the white noise masking feature of them, but switched to using just amplification. I stop noticing my tinnitus a few minutes after I put them in, and it starts again a few minutes after I take them out.

In the spirit of "there's a forum for everything," you can get help programming them yourself here:

https://forum.hearingtracker.com/

cdjk··on Inside the longest Atlassian outage
This isn't the longest outage - last time they couldn't recover and recovered data from email archives.
cdjk··on Tell HN: Dropbox user age verification feature can lock your account
This could actually be a feature and not a bug from a legal perspective. If they are blocking anyone who gives any indication that they are under 13 then it might be easier to show compliance with COPPA.

This has made me wonder at times if the best way to get my data delete from someplace is to talk to customer service and repeatedly say that I'm twelve.

cdjk··on Tell HN: Dropbox user age verification feature can lock your account
One of the main results of COPPA is teaching children to lie about their age on the internet.
cdjk··on The Uselessness of Phenylephrine
My favorite REAL ID compliant ID to use is my Global Entry card.
cdjk··on Teaching is a slow process of becoming everything you hate
I would be curious to know the name of that school.
cdjk··on Dinosaur food: 100M year old foods we still eat today
This is an I interesting idea I haven’t heard before - do you have any sources on this?
cdjk··on Venmo, PayPal and Zelle must report $600 in transactions to IRS
Why? This is a serious question. Seven years is the correct time period for musical instrument depreciation. And if I recall, any property than can be depreciated must be, and if not will be treated as if it had on sale.

Besides, if it’s ever sold there is recaptured depreciation which counts as income.

cdjk··on Grocery store shortages are back
I think this is one of the best mouse traps:

https://www.automatictrap.com/

Electric traps work too, but are a pain to clean.

Snap tracks are effective, but when I had both mice and rats I found that a mouse trap could break a rats leg but let it walk away, and a mouse could eat from a rat trap without triggering it. Neither of those were good outcomes.

cdjk··on More Americans are saying they’re ‘vaxxed and done’
>>Vaccines still lower disease severity. >Not for kids under 5. That's why it's not approved.

Wrong. Per the Pfizer press release [0], the immunogenicity analysis of the trial failed in children ages 2 to 4, but succeeded in children ages six months to two years. Given the small dose (3ug) in that study cohort, there was probably not enough rna in the vaccine for the 2-4 age group to show any effect.

>Why is this a valid concern, but potential long-term effects of the vaccines aren't? Especially the known risk of inflammation in still-growing bodies and especially in developing hearts.

The risk of developing myocarditis from the vaccine is about 100-150 in 5 million [1]. The risk of developing myocarditis from COVID-19 is about 150 in 100,000 [2]. I know I'm picking the vaccine for my child.

[0] https://www.pfizer.com/news/press-release/press-release-deta... [1] https://www.nature.com/articles/d41586-021-02740-y [2] https://www.cdc.gov/mmwr/volumes/70/wr/mm7035e5.htm

edited for typos.

cdjk··on Venmo, PayPal, Cash App must report payments of $600 or more to IRS
It’s more like having to pay taxes on the money you get when you sell your car even though you sold it for less than you paid.
cdjk··on Venmo, PayPal, Cash App must report payments of $600 or more to IRS
Want to know what’s even more fun? Since 2018 if you have income from a hobby you are not allowed to deduct any expenses from it, but do need to pay taxes on any income. So if you make a bit of money from photography, and buy and sell a bunch of camera gear, you you taxes on all the camera gear you sold even if it’s sold at a loss.
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