San Francisco International Airport Museum
go-activitypub #1
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Hi, Aaron, it's been a long time. Believe it or not, I have also been thinking about how to give every aircraft a social media account! I thought about creating thousands of twitter accounts too, and investigated the existing fediverse server implementations, but when I saw they weren't particularly suitable I decided to focus on some other parts of the problem and trust that eventually someone would create some more appropriate infrastructure that I could then use. And now it seems you've created software for exactly this purpose. One thing I've thought about a bit is the question of what aircraft would post. Places they've been, things they've done, and things that have happened to them are concepts that would seem to port over from the kinds of posts people make. I've been thinking for a while about how to figure out when aircraft are "doing" something[0]. Lately I've been interested in the idea of aircraft posting about their relationships with other entities and infrastructure, especially other aircraft. That is, relationship posts! Which might be coincidental, one-off interactions[1], something closer to a coworker relationship[2], or maybe "playing" together[3][4]. As an experiment I created what I think of as a "debug viewer" for the raw data of a global aircraft feed: https://aircraft.social/events/ (Pretty sure WOF is being used in there somewhere, so thanks for that.) I think there are some fun questions about how to make a system like this interesting to and usable by people. For example, some people might want to follow a specific aircraft. Some might follow aircraft types. Some might only care about posts of certain types of activities, or activities that take place in certain areas. Some of these might be harder than others to fit into the ActivityPub model; For example, could you follow an arbitrary set of activity tags that maybe ends up creating a dynamically created, synthetic "actor"? Or do the same for geographic regions (which could be subscribing to an H3 cell, multiple H3, cells, arbitrary polygons, center points and radii, named locations…)? Anyway, I feel like as members of what might be a pretty small club, it'd be fun to get together and discuss this some more. In the meantime I'll try your software (thanks for writing it). John |
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Hello! A friend was just asking me about time-sensitive "synthetic actors" – specifically something that would combine all the different feeds around a single flight – so that's a thing I have started tossing around in my head. Before we do that, though, we will likely try to tackle the other thing you mentioned: Automating interactions between actors. In our case, the "simplest and dumbest thing" to start with would be for the tail number accounts to call out the accounts of the airports and airlines (and eventually aircraft models) for any given flight and those accounts "boost" the original (tail number) post. We haven't done this yet because I'm not sure about all the moving pieces (at an ActivityPub level) that need to be accounted for. We have started tracking "tags" (of which mentions are a subset) though – https://github.com/sfomuseum/go-activitypub/blob/main/post_tags_database.go As far as the location stuff goes, if you are not already aware of the Protomaps-based (WOF) point-in-polygon service that might be of interest: https://millsfield.sfomuseum.org/blog/2022/12/19/pmtiles-pip/ We've done some preliminary work using it query (PIP) the region that any given flight is in as we get its most recent location. We haven't done any serious metrics to measure how fast it is beyond observing that it doesn't cause everything else to slow to a crawl. But, yes! I would very much enjoy finding some time to get together and discuss all of this. |
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