Arthur Besse
cultural reviewer and dabbler in stylistic premonitions
- 5 Posts
- 10 Comments
Arthur Besse@lemmy.mlto World News@lemmy.world•Italy considers hiding state flight paths after jamming of von der Leyen planeEnglish0·2 days agoADS-B is quite far away from GPS frequencies, so yeah.
ADS-B packets include coordinates from GPS as well as several values related to the estimated accuracy of said coordinates (which is how flightaware24 is reporting that they had good GPS signal throughout the flight).
Arthur Besse@lemmy.mlto Fediverse@lemmy.world•How decentralized Bluesky is compared to the Fediverse.English0·3 days agowith BlueSky I’d have to account for the data volume of all users on the platform as a whole, bringing the data volume way up to tens of terabytes
I think this is a common misconception based on some critics’ incorrect assumptions and back-of-the-envelope math. See the atproto overview for the different components involved, and then this post (from a BlueSky employee) “A Full-Network Relay for $34 a Month” for some numbers.
If I understand correctly, to run a “full nework relay” does mean to consume all of the text posts from all known servers, but not necessarily all of the media, and not necessarily to keep data you aren’t interested in for any long period of time.
Also, you can run your own PDS and/or App Views without running your own relay at all. And, you can also use multiple other people’s relays.
Disclaimer: I’m not an atproto expert, and I haven’t set any of this up myself.
Arthur Besse@lemmy.mlto World News@lemmy.world•Italy considers hiding state flight paths after jamming of von der Leyen planeEnglish0·3 days agoFlight24 indicates that there was a strong GPS signal throughout the flight. Is there some other type of signal which you think they jammed instead of GPS?
Arthur Besse@lemmy.mlto World News@lemmy.world•Italy considers hiding state flight paths after jamming of von der Leyen planeEnglish0·3 days agoyou’re suggesting they jammed the pilots’ GPS but not the transponder’s?
Arthur Besse@lemmy.mlto Fediverse@lemmy.world•How decentralized Bluesky is compared to the Fediverse.English0·3 days agoThe blog post also says this:
There is one other thing which Bluesky gets right, and which the present-day fediverse does not. This is that Bluesky uses content-addressed content, so that content can survive if a node goes down. In this way (well, also allegedly with identity, but I will critique that part because it has several problems), Bluesky achieves its “credible exit” (Bluesky’s own term, by the way) in that the main node or individual hosts could go down, posts can continue to be referenced. This is possible to also do on the fediverse, but is not done presently; today, a fediverse user has to worry a lot about a node going down. indeed I intentionally fought for and left open the possibility within ActivityPub of adding content-addressed posts, and several years ago I wrote a demo of how to combine content addressing with ActivityPub. But nonetheless, even though such a thing is spec-compatible with ActivityPub, content-addressing is not done today on ActivityPub, and is done on Bluesky.
My comment should have been clearer; what I meant when i said it is more “decentralized architecturally” I was referring to the data model part of the architecture as opposed to the physical server infrastructure currently operating it. The latter is obviously quite centralized still, but the former is designed for resilience against nodes unexpectedly (and permanently) failing.
Arthur Besse@lemmy.mlto Fediverse@lemmy.world•How decentralized Bluesky is compared to the Fediverse.English0·3 days agook, but, does ActivityPub have portable identity and/or content addressability yet, so that when some of those servers (which are often hobbyist-run and/or tenuously funded) inevitably cease operating their users can continue on a different server? 👀
It’s a rhetorical question, and the answer is no.
otoh, atproto’s PLC DID method is also not really decentralized… but at least the rest of their system is actually substantially more decentralized architecturally than AP is.
To anyone interested in reading a very informative in-depth discussion of this topic, I recommend the blog post How decentralized is Bluesky really? by ActivityPub co-author Christine Lemmer-Webber (followed by this and this).
Arthur Besse@lemmy.mlto Fediverse@lemmy.world•Implementing Portable User Identities with DIDsEnglish0·4 days agoi looked into other services with did got an llm to put those ideas in the required format for the issue. Can you please point out the hallucinations in the issue so i can go and fix them
No. Asking other people to read (and now also to correct!) your LLM slop is extremely inconsiderate. Please don’t do that again.
Arthur Besse@lemmy.mlto World News@lemmy.world•The New Video of Federal Agents Ambushing a Student and Disappearing With Her Should Chill You to Your CoreEnglish0·5 months agoThe government revoked Tufts doctoral student Rumeysa Ozturk’s visa due to her pro-Palestinian activism, according to Secretary of State Marco Rubio, who added the State Department may have revoked more than 300 student visas since the beginning of the second Trump administration.
“It might be more than 300 at this point. We do it every day. Every time I find one of these lunatics, I take away their visa,” Rubio said during a press conference in Guyana on Thursday.
https://abcnews.go.com/US/tufts-students-visa-revoked-due-activism-rubio/story?id=120226954
today: “Bulgarian Prime Minister Rosen Zhelyazkov told parliament that the Commission president’s plane had not been disrupted but had only experienced a partial signal interruption, the kind typically seen in densely populated areas. […] But just hours later, the government again changed its position, with Zhelyazkov holding an impromptu news conference early afternoon to revert the official line to the electronic warfare happening in Ukraine once again.”