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I’m thinking about social media backups again after Prismo’s database loss and one of my own test blogs crashing.

I can and do automate backups on the VPS where I host my main blogs.

I can manually backup my social media accounts, but IIRC none of them offer automatic scheduling. I have to remember to run a backup, log into the site, find the right control panel (which sometimes changes!) and request a backup.

I’d like to be able to schedule recurring backups on Mastodon, Twitter, etc. Send me an email each month with a link when it’s ready.

OK, you don’t want to keep generating backups for abandoned accounts. Here are some ideas:

  • Skip the process if I haven’t posted since the last archive.
  • Instead of scheduling a recurring job, schedule a new one 30 days out each time I download an archive.

Refine as needed.

Now, those of us with a little more tech savvy can automate some things with IFTTT. Not the native backup process, but we can set up rules to listen for new posts and automatically save the content somewhere else. But while I can reliably save the text of every post from Twitter, Mastodon, etc., saving media depends on what I’m saving it to. Often the best you can do with IFTTT is embed, not copy. (And that’s if the media is even available in the source feed. Pixelfed’s RSS doesn’t include image URLs, and Mastodon’s RSS/Atom includes them in a way IFTTT doesn’t recognize.)

Eh, maybe I should just read up on ActivityPub and see if I can make a subscribe-to-archive bot.

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Sometimes you choose which social app to open based on

  • who you want to talk to
  • who you want to hear
  • what you want to talk about

Sometimes you’re just shouting into the void. At those times, I figure I’ll choose the void that feels less exploitative.

That’s part of why I still have a blog. And why I post more on Mastodon, while Twitter is mostly auto-shares from my other networks, retweets, and occasional cross-posts.

(And politics, because I’d rather keep that on Twitter, where it’s sort of the main topic anyway, than on the network that’s still fun. Not that Mastodon is apolitical. Far from it! But it’s a lot more varied than the overwhelming focus on US partisan politics I see on Twitter. And the culture and structure make the discussions at least somewhat less train-wrecky. Most of the time.)

Update: If you’re interested in checking out Mastodon and the Fediverse, good places to start are JoinMastodon.org and JoinFediverse.wiki.

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An orange ring in the blackness of space

How cool is it that we now have an actual image of the event horizon of a black hole! More precisely: it’s the glowing accretion disc of matter falling into the black hole, and the event horizon’s silhouette.

The Event Horizon Telescope, actually a worldwide array of telescopes, used interferometry to effectively create a planet-sized telescope to see the light around the supermassive black hole at the center of M87, a galaxy 55 million light years away.

I remember talking with a college classmate about giant interferometry telescopes back in the late 1990s. It’s incredible to see the technique actually making discoveries like this!

What we’re seeing in this image isn’t a top-down view of the accretion disc, but an angled one — think of Saturn’s rings — and the gravity of the black hole is bending the light from the disc. Phil Plait has a great article on the science behind the image. Katie Mack has a Twitter thread on how the image was produced, why the ring looks the way it does (it tells us which direction the disc is spinning!), plus simulations of this type of black hole seen from different viewing angles.

Here’s a paper talking about the history of black hole images, with a detailed discussion of what you should expect for the “shadow” image we’ve just seen. Check Fig 12, with renderings of shadows for disks at different angles arxiv.org

4x4 grid of black circles with red/yellow outlines, with bright and dark spots in the outlines.

— Katie Mack (@AstroKatie) April 10, 2019

Direct links to the articles she mentions:

And this Mastodon thread by @SohKamYung@mstdn.io collects some more articles worth checking out:

Forbes makes the excellent point that, while we’d seen a lot of circumstantial evidence for black holes over the last few decades, this confirms that they exist.

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What’s the minimum viable blog feature set these days?

  • Rich text posts (output; the source can be anything)
  • Titles
  • Permalinks
  • Tags/categories
  • Navigation
  • RSS feed
  • Images hosted locally
  • Media embed (remote or local?)
  • Author info for multi-author blogs

I won’t back down on RSS/Atom, because there’s SO MUCH you and subscribers can do with it.

I also think images should to be built-in and not something you bolt on clumsily afterward.

Not sure if I’d consider comments part of the base level.

What else am I missing?

Candidate Software

Looking for something lighter weight than WordPress.

The last time I tried Plume and WriteFreely, they didn’t support images, though IIRC you could embed remote images in at least one.

Static site generators I’ve tried like Jekyll require you to bolt on separate commenting systems like Disqus, or jump through hoops to roll your own in a way that will re-generate the site when someone comments…and you still have to reinvent spam filtering.

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Trelawney and the Spider Jockey.For this year’s WonderCon, Katie refined her Professor Trelawney costume from Long Beach. The biggest change: extending the skirt instead of using actual layers, because it was warm in Anaheim. Just for the weekend – it jumped about 10°F just before and was expected to drop 10°F afterward. She remarked, only half-jokingly, that if she’d tried to do Whitney Frost, the makeup would have melted.

The great thing about Trelawney: Not only is she instantly recognizable to almost anyone (though she did get mistaken for Dr. Olivia Octavius at one point), but there were a lot of Harry Potter cosplayers at the con! Every time she ran into an Umbridge, she’d pretend to hide.

The Paper!For Sunday, she reassembled her Yomiko Readman (a.k.a. The Paper from Read or Die) costume from a few years back. Weirdly enough, more people seemed to recognize her than used to when she wore it in San Diego!

The kiddo wanted to wear the Minecraft Spider Jockey costume again, and it was just as big a hit this year as last time. And even though the straps left his shoulders sore (Katie plans to redo them with actual backpack straps), he wanted to keep it for the second day. Unfortunately that was a bit too much, and we ended up leaving early Sunday afternoon.

For more photos of all three costumes, and a bunch of other cosplayers we ran into at the con, check out the full gallery on Flickr.

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Last fall, I conceded that phones have caught up to casual cameras and I’d have to get a nicer one to get better image quality. Well, I finally bought a mirrorless camera. The kiddo found my old SLR, and we’ve split a few rolls of film (re)discovering how to shoot with it. Then he started asking about a modern digital equivalent. Since it was going to be two of us using it, not just me, I felt like I could justify the expense.

I read a bunch of reviews and asked around for advice, finally settling on a Sony Alpha a6000. It’s a few generations back in their advanced amateur line, making it a bit more affordable.

We brought the new camera to WonderCon, and I made some discoveries:

  1. It actually handles the light level inside the convention center!
  2. I’ve gotten waaaay too used to just capturing costumes when shooting cosplayers, instead of composing interesting shots. Most of the photos I took on Saturday had good image quality, but were ultimately just snapshots.
  3. Because of #1 and #2, I ended up with a lot of busy backgrounds. I tried to cut down on the distraction by adding vignetting to some of the photos afterward.

Originally we planned totrade off who had the good camera, but he ended up wearing his giant Minecraft Spider Jockey costume the entire time, so he didn’t have much opportunity to take photos. In the end, he only took one all weekend…but it was the best-composed shot of the entire day!

Women dressed as Joy, Sadness and Disgust from Inside Out

I took the lesson from that, and while most of my pictures on Sunday were still utilitarian snaps, I did manage to take a few that I think worked out better, like these three:

My full cosplay gallery is on Flickr, including these four photos and all those snapshots.

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“Babylon 5 was the last of the Babylon stations. There would never be another. It changed the future … and it changed us. It taught us that we have to create the future … or others will do it for us. It showed us that we have to care for one another, because if we don’t, who will? And that true strength sometimes comes from the most unlikely places. Mostly, though, I think it gave us hope … that there can always be new beginnings … even for people like us.”

— General Ivanova in Babylon 5: “Sleeping in Light”

It seemed fitting.

While Google+ was never a shining beacon in cyberspace, it spanned the period from when social media was still new(ish) and exciting and hopeful, to when we started realizing that the big tech silos — Google, Facebook and Twitter especially — have been creating the future for us, one recommendation algorithm at a time…and it’s a train wreck.

We need to create our own online future.

We need to care about the people at the other end of the connection.

We can find our strengths, and build up others’.

And there can still be new beginnings.