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fxtentacle

22,069 karma · joined January 10, 2013

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fxtentacle··on Announcing Tinker
"the Tinker API provides simple functions to compute gradients, update the weights, and sample outputs from the trained model"

It sure sounds like a PyTorch tutorial, but I believe it's yet another "AI training made slightly easier for you" start-up. But all of them seem to solve the easy problem of managing data and compute, while very few tackle the hard problem of generating good training data.

fxtentacle··on Detect Electron apps on Mac that hasn't been updated to fix the system wide lag
My guess would be that they wrapped the help/docs website into an Electron view.
fxtentacle··on The gaslit asset class
It didn't take long before it became obvious that Bitcoin would revolutionize money laundering. I think this is more like the righteous vs. evil scale in D&D. Some people are OK with profiting off crime while others aren't. And techies are more likely to be on the righteous side, while bankers, traders, or CEOs are more likely to be on the psychopathic side. And if you look at how many times HSBC has been in the news for working closely with mafia, I'm not surprised that they're selling crypto ETFs now.
fxtentacle··on High-resolution efficient image generation from WiFi Mapping
FYI the images are not generated based on the WiFi data. The WiFi data is used as additional conditioning for a regular diffusion image generation model. So what that means is the WiFi measurements are used for determining which objects to place where in the image, but the diffusion model will then fill in any "knowledge gaps" with randomly generated (but visually plausible) data.
fxtentacle··on Bit is all we need: binary normalized neural networks
In this paper, each iteration has to be slower. Because they need to calculate both their new method (which may be faster) and also the traditional method (because they need a float gradient). And old+new will always be slower than just old.
fxtentacle··on Apple threatens to stop selling iPhones in the EU
That threat is as hollow as it gets.

Public companies will happily can the entire management team if they cause as little as a 5% dip in stock price. Apples EU revenue is larger than China and Japan combined. Voluntarily forfeiting that is like the modern management equivalent of ritual self-sacrifice: afterwards, they would have so much unsold stock on their hands that it’s going to tank prices worldwide.

fxtentacle··on Bit is all we need: binary normalized neural networks
These techniques are not new. And the reason why they’re usually not used is on page 9 in the paper. They require about 10x as many training iterations.
fxtentacle··on VR Headsets Are Better Than Ever and No One Seems to Care
Eww...

Meta is dead in the water with most gamers after they locked people out of their purchases and tried to shove a mandatory facebook login down everyone's throat.

Pimax is famous for over-promising and under-delivering - if they deliver at all, that is. Reddit is full of people complaining that they still haven't received their purchases from the launch before the last new announcement.

Apple’s Vision Pro was the price of a used car and you need to voluntarily lock yourself into Apple's ecosystem and pay 30% of all revenue to Apple for the privilege, so VR's biggest market (which is gaming) just said FY Apple and that's why it's one of the products with the highest return rate ever.

So you have Spyware vs. Vaporware vs. Masochism as your options. What a surprise that sales are down !!!! (not really)

I am in the market for a high-res VR headset for gaming. But there isn't any product for me to buy. Quest and Apple don't play well with PC. And for Pimax there's no shop actually selling them. (The article seems to agree, too. They have sales links to Meta and Apple, but no link for Pimax.)

fxtentacle··on Giving users choice with Cloudflare's new Content Signals Policy
This is massively counterproductive!

They add to the robots.txt file:

"As a condition of accessing this website, you agree to abide by the following content signals ..."

which means robot operators are now better off if they never download the robots.txt file, because then you know for sure that you won't accidentally encounter these conditions.

This creates a legal risk if you try to adhere to the robots.txt, so it'll make future AI bots less controllable and less restricted.

fxtentacle··on 25L Portable NV-linked Dual 3090 LLM Rig
The 3090 are a sweet spot for training. It’s the first generation with seriously fast VRAM. And it’s the last generation before Nvidia blocked NVlink. If you need to copy parameters between GPUs during training, the 3090 can be up to 70% faster than 4090 or 5090. Because the latter two are limited by PCI express bandwidth.
fxtentacle··on Leatherman (vagabond)
Change one a to u and this might be about a president ^_^ I never noticed before how close those words were. And he'd probably like the prefix "Super".
fxtentacle··on If the thieving AI company can survive the settlement, then it is not big enough
"The consequences for theft should include that the profit you made off of the theft is taken away."

That seems very reasonable. Otherwise, stealing money, lending it out for interest, and then returning the stolen money while keeping the interest would be a viable way to earn money.

"The cost of building a company on theft should be the company itself."

Also seems reasonable, because it is the same rule applied to AI companies.

I'd say leave 20% for the VCs and split the other 80% of Anthropic stock among the authors of affected books. That would surely discourage similar behavior in the future.

fxtentacle··on I didn't bring my son to a museum to look at screens
I'm 100% sure that they never intended this for my age group ... but that trailer looks like it'll be so much fun.

Thank you for sharing :)

fxtentacle··on Scammed out of $130K via fake Google call, spoofed Google email and auth sync
https://www.deutsche-bank.de/ub/kontakt-und-service/service/...

"New online banking and new app

From 25 August 2025, you will benefit from the upgrade for online banking and Deutsche Bank app.

[..]

From 25 August, you will be able to simply reset your PIN yourself.

[..]

after logging in, you can also see accounts for which you are an authorised signatory."

But out of fairness, let me just mention that Chase behaves the same way. I think all of them just don't really care about small- and medium-sized businesses.

fxtentacle··on Scammed out of $130K via fake Google call, spoofed Google email and auth sync
Except that a few weeks ago, I got a phone call

- from a number with no results on Kagi search

- claiming to be the online banking support of my bank

- asking me to read them a code sent to me via SMS

and when I refused to do that, they blocked my login credentials for online banking and sent me a sternly worded (paper) letter that my account could not be upgraded automatically for their software system migration because I had refused to engage with their support agent.

I then had to create a new login in their app, call the phone number on their letter and read that guy the SMS code and, to my surprise, that was the only !!! authentication needed to activate the new login credentials that I had just created.

(BTW, this was one of the top 100 largest banks worldwide)

It's almost like some companies are training you to fall for scams.

EDIT: This specific instance was Deutsche, but Chase has the exact same horrible habit of calling and then asking for an OTP code.

fxtentacle··on Microsoft to force install the Microsoft 365 Copilot app in October
Someone wanted to make it kid-safe. Except they didn't notice that they are designing a software UI and not a wooden cupboard.
fxtentacle··on Korea's major US investment projects halted
I love how they still try to be super polite about it:

"Korean workers are being treated like criminals for building factories that Washington itself lobbied for. If this continues, investment in the US could be reconsidered."

"could be reconsidered"

fxtentacle··on Denmark's Justice Minister calls encrypted messaging a false civil liberty
I look forward to soon reading about Peter Hummelgaard's leaked private emails in the newspapers. Let's hope (for him) that he was right about not needing any privacy or encryption. And let's hope his friends/family agree.
fxtentacle··on I didn't bring my son to a museum to look at screens
Show them Red Faction (the video game) and then explain that all the destruction is calculated using binary space partitioning and that all they need for making similar games is to accurately calculate the intersection of planes, lines and points. Add a few linear forces and numerical integration and there you have your Trojan horse for getting kids hooked.
fxtentacle··on Incident Report for Anthropic
You need the relaxed acceptance to get those cost savings. Every time you determine your small model to be "good enough", it allows the large model to skip one iteration in its recursive decoding loop. You are correct in the sense that you can estimate the probability that the large model would have had for predicting the token(s) that your small model chose, but you don't know which tokens the large model might have predicted based on tokens that the small model did not predict. Unless, of course, your "small" model becomes as precise as the large model, at which point it's not small anymore.

In other words: The speculative decoding causes "holes" in your beam search data. You can fill them by sampling more, increasing hosting costs. Or you fill them with approximations, but that'll skew the results to be more "safe" => more generic, less reasoning.

fxtentacle··on AMD claims Arm ISA doesn't offer efficiency advantage over x86
If you take a peak-performance-optimized design (the Intel CPU) and throttle it down to low power levels, it will be slower than a design optimized for low power (the Apple CPU).

"let's compare oranges to oranges"

That's impossible because Apple has bought up most of TSMC's 3nm production capacity. You could try to approximate by comparing Apple M4 Max against NVIDIA B300 but that'll be a very one-sided win for NVIDIA.

fxtentacle··on Incident Report for Anthropic
My guess would be that they tried to save money with speculative decoding and they had too loose thresholds for the verification stage.

As someone who has implemented this myself, I know that it’s pretty easy to make innocent mistakes there. And the only visible result is a tiny distortion of the output distribution which only really becomes visible after analysing thousands of tokens. And I would assume that all providers are using speculative decoding by now because it’s the only way to have good inference speed at scale.

As a quick recap, you train a small model to quickly predict the easy tokens, like filler words, so that you can jump over them in the recurrent decoding loop. That way, a serial model can predict multiple tokens per invocation, thereby easily doubling throughput.

And the fact that they need lots of user tokens to verify that it works correctly would nicely explain why it took them a while to find and fix the issue.

fxtentacle··on Taco Bell AI Drive-Thru
That’s spot on! I really like the chocolate milk at Starbucks. And sometimes I will get one with the optional shot of coffee added.
fxtentacle··on A queasy selling of the family heirlooms
Sadly, this also matches my impression of the quality level of treadmills sold on Amazon. They are cheap and optimised for easy transport rather than usability.
fxtentacle··on Nintendo Switch 2 Dock USB-C Compatibility
Assuming that you are referring to the Nreal Air VR goggles, those cannot accept a regular video signal over USB-C. They are NOT monitors. For making them work, they need to do pre-processing of the video stream on the host device, thereby degrading gaming performance. That's why they need an app, because they lack an integrated CPU/GPU and that makes them not compliant with the USB-C monitor spec.

And I believe that's also the real reason why Nintendo would block them: They make otherwise fluent games stutter, which will reflect badly on Nintendo and the game developers. Because people in general won't know that their Nreal Air is stealing some of the Switch's GPU performance and that they are creating performance issues themselves.

fxtentacle··on Nintendo Switch 2 Dock USB-C Compatibility
"Test 5: DR_SWAP always rejected"

That means the monitor tries to change its own role from USB host (which it defaulted to because it's the power source) to USB gadget. And the Switch rejects the request because it sees itself as the USB gadget (for example to exchange data when you connect it to a PC).

The article itself also says "Our monitoring of the interactions with the USB-C monitor shows that the negotiation does not even get to the point of the Vendor Defined Messages(VDM)" so I see no hint of foul play by Nintendo. (And why would they? They are not in the business of selling USB monitors.)

My guess would be that the connection failure is due to a firmware bug in the monitor. But I am also heavily biased here because my last Asus screen had A LOT of firmware issues.

fxtentacle··on A 'third way' between buying or renting? Swiss co-ops say they've found it
This is becoming more popular in Germany, too. In effect, future renters pool their money into a non-profit which will then build affordable housing, to be owned and inhabited by them.

https://en.wikipedia.org/wiki/Housing_cooperative

fxtentacle··on GMP damaging Zen 5 CPUs?
He's a bit sensationalist, yes, but I am thankful that he saved us from buying affected Intel CPUs.
fxtentacle··on GMP damaging Zen 5 CPUs?
"We suspect that GMP's extremely tight loops around MULX make the Zen 5 cores use much more power than specified, making cooling solutions inadequate."

I feel like if this was heat related, the overall CPU temperature should still somewhat slowly creep up, thereby giving everything enough time for thermal throttling. But their discoloration sure looks like a thermal issue, so I wonder why the safety features of the CPU didn't catch this...

fxtentacle··on US Intel
Yeah, it's almost as if prioritizing returns on investment over EVERYTHING!!! else has bad side-effects for the economy as a whole.
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