Samuel
ok how about this: AP: you have multiple twitters that talk to each other AT: what if twitter drew its data from the open web?
dan@danabra.mov· 30 Oct 2024
i wonder if diagrams like these might help draw the distinction between ActivityPub (and how Mastodon uses it) and AT Protocol (and how it’s used by Bluesky and atproto apps)? with AP, instance = application + hosting. data gets sent between instances. with AT, data flows *from* hosting *to* apps
diagram with multiple application+hosting boxes. each box contains some users and some posts. data is sent between the boxes.a diagram with two layers. in the top layer, users choose hosting (and their data is stored in their hosting). the data then flows down from hosting into separate apps which mirror and aggregate the data they receive from hosting. the hosting boxes are drawn with dashed borders to indicate they're not fixed, and the user may move their data between different hosting without affecting the applications.
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Samuel
AP’s credible exit: you can make a new twitter. however your data is stuck on the old one AT’s credible exit: the data layer is independent from the apps and the network state is reproducible, so you can move to a new twitter seemlessly and even with an adversarial data host
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Samuel
bluesky is a “view” of all bluesky-type data on the open web. making a new “instance” of bluesky is to create a new “view” of the same data. this is like how Google and Bing have created independent search indexes of the same data
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Pelle Wessman
@samuel.bsky.team Slight modification needed though: IndieWeb is Twitter but pulling data from the open web (microformats in html pages served over http) Bluesky is the same but pulling data from the decentralized web (borrowing from eg IPFS)
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Samuel
@samuel.fm
hmm, kinda misses the crucial aspect that atproto data is intended to be aggregated into network views, which then work like traditional services
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