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jdewerd commented on Yt-dlp: External JavaScript runtime now required for full YouTube support   github.com/yt-dlp/yt-dlp/... · Posted by u/bertman
1vuio0pswjnm7 · a month ago
"Support for YouTube without a JavaScript runtime is now considered "deprecated." It does still work somewhat; however, format availability will be limited, and severely so in some cases (e.g. for logged-in users). "

The devil is in the details

There are some formats, perhaps the one(s) the user wants, that do not require a JS runtime

Interesting that "signing up" for a website publishing public infomation and "logging in" may not always work in the user's favor. For example, here they claim it limits format availability

"Format availability without a JS runtime is expected to worsen as time goes on, and this will not be considered a "bug" but rather an inevitability for which there is no solution. It's also expected that, eventually, support for YouTube will not be possible at all without a JS runtime."

It is speculated that this format availability might change in the future

jdewerd · a month ago
How long until it comes with a DRM AI and then my anti-DRM AI will have to fight it in a virtual arena (with neon lights and killer soundtrack, of course)?
jdewerd commented on Europe to decide if 6 GHz is shared between Wi-Fi and cellular networks   theregister.com/2025/11/0... · Posted by u/FridayoLeary
matt-p · 2 months ago
It's a technical/commercial necessity to have exclusive use over the spectrum in a given area. If you don't believe me why doesn't every city in the world have a paid wifi network? With 5Ghz it should be faster than typical 4G/5G speeds, and it only needs lampost level APs, pretty similar to the microcells that carriers deploy but an order of magnitude cheaper. Instead mobile carriers would rather buy 3 or 6ghz spectrum that only ever gets used in cities anyway, why not wifi in the cities?

ISM is tragedy of the commons; make it free, let anyone do anything and it becomes junk. Carriers need something they have exclusive use of.

jdewerd · 2 months ago
ISM is thriving, the only tragedy is that carriers haven't figured out how to charge rents on it and that's a tragedy for them, it's a spectacular success for everyone using it for free.

Carriers don't need 6GHz for backhaul. They have fiber and cable and (other) microwave. Not to mention the ability to shape their own links with antennas and beam forming and do a good job of it rather than a "default job." What they don't have -- and shouldn't be given under any circumstances -- is the excuse to build a moat in the bustling public park.

jdewerd commented on Europe to decide if 6 GHz is shared between Wi-Fi and cellular networks   theregister.com/2025/11/0... · Posted by u/FridayoLeary
PunchyHamster · 2 months ago
so in reality you're 1 channel up over 6GHz becasue people are not buying wifi6 router to stay on 80MHz channel
jdewerd · 2 months ago
Completely independent of bandwidth, higher frequencies also fall off faster. That's bad if you are trying to cover max space but good if you are trying to avoid noisy neighbors.
jdewerd commented on Europe to decide if 6 GHz is shared between Wi-Fi and cellular networks   theregister.com/2025/11/0... · Posted by u/FridayoLeary
matt-p · 2 months ago
Sure obviously giving it to WiFi and then installing town wide free WiFi would be the absolute most efficient option but I'm trying to stay realistic.
jdewerd · 2 months ago
I never said anything about free or government-run WiFi, just about auctioning off the spectrum. Companies that build out the infrastructure should be able to charge for access, but they shouldn't be able to prevent others from competing by paying the government for exclusivity. That's a scam.
jdewerd commented on Europe to decide if 6 GHz is shared between Wi-Fi and cellular networks   theregister.com/2025/11/0... · Posted by u/FridayoLeary
matt-p · 2 months ago
India has 15% fixed broadband penetration. So let's say you've got a town of 100K households. You can;

A) give the richest 15K of them absolutely no faster WiFi whatsoever because 5GHZ will not be congested at all for them (so there is no problem to solve really)

OR

B) you can have the mobile carrier install a 6Ghz base station on every other telecoms/power pole in town and offer up terabits of mobile data capacity available to everyone throughout the town.

What's the most efficient use?

jdewerd · 2 months ago
The most efficient way to extract money from people is to sell off the spectrum to the highest bidding rent seeker, I agree.

As for most efficient use of the resource, well, consulting my spectrum analyzer, ISM bands are winning by a mile and we should want more of them.

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jdewerd commented on AMD adds RF-sampling data converters to Versal adaptive SoCs (2024)   electronicsweekly.com/new... · Posted by u/teleforce
hkwerf · a year ago
Yes, I have seen versal, in particular in defense and satcom. However, in just that field, I have also never seen an RFSoC.

I've seen lots of integrated RF transceivers that were tightly coupled to the FPGAs, but not shared on the same SoC.

jdewerd · a year ago
Is that because defense doesn't like them or is it because (non-wartime) defense moves on geological timescales and these are "new"?

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jdewerd commented on Benchmarking RSA Key Generation   words.filippo.io/dispatch... · Posted by u/mfrw
af3d · a year ago
Iterating over some huge search space in an essentially sequential manner is generally not going to be nearly performant as simply selecting an odd number at random. You could try using a generating polynomial instead such as f(x) = x^2 + x + 41 but even that isn't going to help much in the long run. (There are Diophantine equations which one day may prove useful for generating random primes however AFAICT finding efficient solutions is still currently considered a hard problem.)
jdewerd · a year ago
Yes, but the more we mix sieve rejection into candidate selection the more we complicate the rule of thumb. "Reject even numbers as prime candidates" is probably OK to leave as an exercise for the reader, as is the equivalent "round every candidate to odd" optimization. The point about random vs sequential is well taken, though, and it doesn't complicate the rule of thumb, so I changed it.

u/jdewerd

KarmaCake day657December 8, 2023
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