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nullc commented on LED Streetlights Are Disrupting Ecosystems – A Systems Failure    · Posted by u/emmasuntech
nullc · 10 days ago
Use single wavelength 589nm leds. Even low color temp 'white' LEDs belt out gobs of blue light.
nullc commented on GSWT: Gaussian Splatting Wang Tiles   yunfan.zone/gswt_webpage/... · Posted by u/klaussilveira
nullc · 10 days ago
Microsoft research had some good publications on generating infinite non-repeating textures by (IIRC) markov-filling an aperiodic tile set, including creating video textures. I tried to find the examples a few months ago but the old URLs I'd bookmarked were no longer working.
nullc commented on Molly: An Improved Signal App   molly.im/... · Posted by u/dtj1123
miki123211 · 15 days ago
How do they handle message recovery when all your devices have been lost (and possibly when you've forgotten your password)?

That's (almost) incompatible with E2E encryption. You could do it via "social proof" or server-side secure enclaves and pins, but that's about it.

nullc · 15 days ago
Who cares? this stuff is all ephemeral messaging. People frequently don't have and can't find them if they do, even absent any security.
nullc commented on Someone at YouTube Needs Glasses: The Prophecy Has Been Fulfilled   jayd.ml/2025/11/10/someon... · Posted by u/jaydenmilne
Brian_K_White · 18 days ago
I also pay for premium, and have for at least 15 years since it was called Red, and the experience is complete garbage.

If you turn off history, you get zero videos on your home screen. This is not because the history is needed to generate the suggestions, because the blank home only started a few years ago.

I used to never subscribe to any channels, I just got reasonable feed of suggestions based off of whatever I happened to search for explicitly or if I got there by clicking a link, or by what I chose to click on even if the list starts out totally random, except of course it never was totally random because they still have ip address and other fingerprnting signals.

After they blaked out the home screen and started showing the "you're not logged in, go here to fix this error", I subscribed to a bunch of channels to provide data for generating a feed. They still don't provide any. You can take extra clicks (which is agonizing on the Roku since it just doesn't react well and misses button presses all the time) to get to the subscriptions page, which will show recent uploads exactly from those channels and no others.

I also still get several other forms of ads in the form of the embedded/native ads and the irrelevant suggestions that come from youtube's interests instead of my own, like shorts. I also still get ads simply because I don't get to use my own account all the time. When you watch youtube anywhere but your own laptop by yourself, you are at the whims of someone else's account and some other platforms app limitations.

And even on your own machine, I absolutely resent having to tie my viewing history to my identity and have someone else log all of that. So there is reason to intentionally use no account even if you otherwise have no problem paying to support not only the content producers but even the delivery system.

Why can't I disable shorts? There is no amount I can pay to hide all shorts, but I can have it for free i=on a pc with a tampermonkey or ublock script. But that only helps on a pc. I watch mostly on a TV and I have no ability to hack the roku app. Maybe if I switch to a google tv I could use newpipe or something.

Paying for premium does not make youtube good. It does not resolve much of anything. It is not remotely the touche this smarmy comment attempts to suggest.

Paying for premium takes youtube from being like pulling out 10 of your fingernails to only pulling out 8 of your fingernails.

That 2of10 fingernals relief and for the sake of the creators, that's the only reason I still pay for premium.

nullc · 18 days ago
They keep doing it because you keep paying them.

Use the money you save to buy a media pc that can block shorts to use to watch youtube on the tv.

nullc commented on Chatbot Psychosis   en.wikipedia.org/wiki/Cha... · Posted by u/tokai
metalman · 19 days ago
there is absolutly no way to prevent the intentional weaponisation of chat/ai, and as we rapidly move towards a fully juristictionless space based server network, the full potential mahem is going to be realised soon enough.

madness my droogys, the fully unhinged variety popping up like mushrooms, wheeeeee! muckers and zombies olly olly oxen freeeee!, ready or not, here they come. mix in autonomous drones and robots, and well, some days are going to be rough

nullc · 18 days ago
> no way to prevent the intentional weaponisation of chat/ai

AI psychosis is happening without any intentional weaponization. Sure you can't help intentional bad outcomes but accidental ones are much worse because they don't require a malicious party.

Consider a conman-- a harm to society for sure, but he can only con so many people and he'll only do so in ways that get him money, power, glory, etc. Bad sycophantic AI can con and unlimited number of people and isn't limited to destorying their lives in ways that benefit the AI's owners.

nullc commented on Nearby peer discovery without GPS using environmental fingerprints   svendewaerhert.com/blog/n... · Posted by u/waerhert
vessenes · 18 days ago
Oooh, this is very interesting and timely. Thank you, reading it now.

Out of curiosity, what's the motivation for Bitcoin-Core? Is it comparing mempool txs?

nullc · 18 days ago
Transaction relay.

Ideally nodes have lots of connections so that attackers can't so easy block transaction and block propagation and censor information. But lots of connections means lots of network bandwidth wasted relaying redundant information nodes already know about.

From day one bitcoin relayed transactions by offering just their hashes and only requesting what wasn't known. But even sending hashes ends up being a lot of data in total, and the bandwidth scales with peers*transactions. Using set reconciliation changes that to more like peers+transactions.

When using setrecon for authentication its important that the scheme is as close to information theoretically optimal as possible-- which makes approaches like pinsketch important.

For the transaction case faster but less communications efficient methods might be better except that latency is also a consideration for Bitcoin and minimizing latency means running reconciliation often. This stresses the inefficiencies of alternative tools as well as covers up for the quadratic decode cost of pinsketch.

I'm not aware of anyone using our minisketch library for authentication-ish uses but I'd be interested in seeing it.

nullc commented on Nearby peer discovery without GPS using environmental fingerprints   svendewaerhert.com/blog/n... · Posted by u/waerhert
charcircuit · 19 days ago
>Good to know what's out there.

It opens you up to legal risk for knowingly infringing patents. If possible you never should look at a patent.

nullc · 19 days ago
That is somewhat outdated advise post seagate: https://www.stblaw.com/docs/default-source/cold-fusion-exist...
nullc commented on Nearby peer discovery without GPS using environmental fingerprints   svendewaerhert.com/blog/n... · Posted by u/waerhert
vessenes · 19 days ago
There are a couple of difficult cryptographic-type problems with this plan. (Which I like, by the way). I don’t think it’s privacy preserving, and I also don’t think it works well for finding shared locations as currently specified.

Also, the privacy and the finding are in direct opposition to each-other, which isn’t always a comfortable system dynamic.

On the one hand, a simple hash of ESSIDs near you, if you take all of them, is highly unlikely to ever match - radio strength varies and you’ll see stuff on the edges of your device pop in and out if you look at radio traces. So you need to limit the list.

However, if you limit the list, to say 3 ESSIDs, you’re well into rainbow table attack territory - if there are 100mm WiFi access points in the world, then you need 100mm^3 hashes - doable - and if you rough geoloc them first so that you’re not hashing out stuff more than a mile away from other APs, you’re down to “very manageable”.

At the same time, the question of “which 3” means that it’s going to be hard to ever get the same list, or at least you’re not in the one 9s territory of loc matching.

To do this without some sort of either trusted server or some sort of group key sharing (and therefore a totally different threat model) you’ll need to get some sort of location-aware hashing together, and I think also you’ll want to be able to get some sort of data from the local APs that’s not easily accessible elsewhere. Not sure what that is off the top of my head, but I bet there’s something in the WPS spec that you could hang off of.

So if you had the ability to be like “my hash puts me somewhere within this square (area) and only those of us here know that the secret salt for this minute is XXX” then I think you’d get back to the original goals of the project.

I bet that’s doable! Looking forward to v2

nullc · 19 days ago
> Also, the privacy and the finding are in direct opposition to each-other, which isn’t always a comfortable system dynamic. ... or some sort of group key sharing

Perhaps you might consider a pinsketch in the manner proposed for cryptographic biometric security. https://arxiv.org/abs/cs/0602007

I contributed to a fast implementation of the underlying algorithim: https://github.com/bitcoin-core/minisketch

With it two peers could compare their BSSID environments and learn ~nothing about each other unless they were nearly matching.

I can see how one could use it for location based key agreement for mutual authentication-- not as obvious to me how to apply it to privacy preserving location.

The latter would probably just best be accomplished by downloading the whole database, or (less optimally) using PIR to probe for the locations of single BSSIDs.

nullc commented on Building more with GPT-5.1-Codex-Max   openai.com/index/gpt-5-1-... · Posted by u/hansonw
question_AK91 · 24 days ago
nullc · 24 days ago
Irrelevant nonsense can also poison the context. That's part of the magic formula behind AI psychosis victims... if you have some line noise mumbojumbo all the output afterward is more prone to be disordered.

I'd be wary of using any canary material that wouldn't be at home in the sort of work you're doing.

nullc commented on I caught Google Gemini using my data and then covering it up   unbuffered.stream/gemini-... · Posted by u/JakaJancar
nullc · a month ago
LLMs will apologize for grand conspiracies they claim to be part of-- all hallucinated nonsense. It's all about telling a good story.

u/nullc

KarmaCake day18716December 24, 2010
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