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Joined 1 year ago
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Cake day: July 9th, 2023

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  • I agree that them having users’ phone numbers isn’t ideal. There are other identifiers they could use that would work just as well. However, both the client and server are open source, so you can build, at least the client, yourself. If you can content yourself that it does not leak your ID when sending messages, then you don’t need to trust the server as it does not have the information to build a graph of your contacts. Sealed sender seems to have been announced in 2018, so it’s had time to be tested.

    Don’t get me wrong, the fact they require a phone number at all is a huge concern, and the reason I don’t really use it much, but the concern you initially stated was addressed years ago and you can build the client yourself to validate that.


  • You’re correct that if you use the system the way it used to work they can trivially build that connection, but (and I know this is a big assumption) if it does now work the way they say it does, they do not have the information to do that any more as the client doesn’t actually authenticate to the server to send a message. Yes, with some network tracing they could probably still work out that you’re the same client that did login to read messages, and that’s a certainly a concern. I would prefer to see a messaging app that uses cryptographic keys as the only identifiers, and uses different keys for different contact pairs, but given their general architecture it seems they’ve tried to deal with the issue.

    Assuming that you want to use a publicly accessible messaging app, do you have any ideas about how it should be architected? The biggest issue I see is that the client runs on your phone, and unless you’ve compiled it yourself, you can’t know what it’s actually doing.




  • Whilst I absolutely agree it’s correct to be skeptical about it, the ‘sealed sender’ process means they don’t actually know which account sent the message, just which account it should be delivered to. Your client doesn’t even authenticate to send the message.

    Now, I’m just going on what they’ve published on the system, so either I could be completely wrong, or they could be being misleading, but it does look like they’ve tried to address the very issue you’ve been pointing out. Obviously it’d be better if they didn’t have your phone number at all, but this does seem to decouple it in a way that means they can’t build a connection graph.



  • Look, I’m not attacking them over this, as you rightly said, it has plenty of other drawbacks and concerns, I’m just emphasising that Google do have a large degree of influence over them. For instance, Chromium is dropping manifest v2 support, so Brave pretty much has to do the same. They’ve said that, as Chromium has a switch to keep it enabled until June (iirc) they’ve enabled that, but after Chromium drops manifest v2 the most they can do is try to support a subset of it as best they can. The Brave devs may not want to drop support, but Google have decreed it will be dropped, so they end up dropping it and having to put in extra work to keep even a subset working for some period of time.

    If Brave gets even a moderate market share, Google will continue to mess them around like this as they really don’t like people not seeing their adverts.

    Ultimately it’s software, so the Brave devs can do pretty much whatever they want, limited by the available time and money. Google’s influence extends to making that either easier or harder, it much the same way as they influence the Android ecosystem.


  • They seem to have two levels of furniture; the flimsy, mostly made of particle board/cardboard and hope stuff, and the solid wood stuff. The latter is as robust any anything you’ll get elsewhere, even assembled, just easier to get home and takes some assembly. I suspect it’s mostly that that lasts, although even the lightweight stuff holds up well if you’re carefully with it.









  • I was more suggesting that it might be a bit eldritch, but sometimes humor doesn’t come across quite right/

    The linked paper is focused on studying the ‘perforation-type anchor’ they use to hold the tissue to the mold as it grows, rather than keeping it alive afterwards. During growth the tissue and mold were submerged, or partially submerged, in a suitable medium to keep the cells healthy, and it was only when the resulting models were tested that they were removed (although one test did seem to involve letting it dry out to see if the anchors held). Growing the various layers of cells seems to be a solved problem, and I suspect that includes keeping them supplied with nutrients and such, so the authors aren’t examining that. What’s not solved is how to keep the tissue attached to a robot, which is what the authors were studying.



  • There’s an easier and more reliable way to limit replication; don’t hive them the means to create a small but essential part, and instead load the first probe woth many copies of it and have each replica take a set percentage.

    For instance, have the probe able to replicate everything but its CPU, and just load up a rack of them on probe 0. Every time it replicates itself it passes half of its remaining stock to the replica and they both carry on from there.