I’ve been a little less active here the last few weeks. Here’s why: https://mihobu.lol/arizona-update-week-07-2026

#arizona #weeknotes

@evan @julian@fietkau.social @julian@activitypub.space @smallcircles i think there needs to be a way to get a consistent event log in-order from the canonical/authoritative source. failing that, though, the least you could do is have your activities refer to each other in an obvious way. Undo(Accept(Follow)) lets you reverse-reconstruct what happened because all 3 activities are right there (hopefully fetchable!). so maybe Undo(Add) makes more sense than Remove; perhaps we say that the Remove is the result of the Undo?

@scottjenson I'm a fan of prioritizing the DM experience first.

wrt encryption, part of the challenge is how to interpret "private." Instead of the, "Who can see this?" default posture of Mastodon, this starts to ask something like, "Who cannot see this (beyond the addressed person/people)?"

#mastondon Friends!

There is a TON of improvements we could make to Private Mentions (often called DMs on other platforms) e.g.
* getting them out of the public timeline
* Having a stronger notification tied to the Private Mention tab
* (amount other things)

But here is my MAIN question: How critical is it that these message are encrypted? I'm not against encryption! It's just complex and will take time. If we were to make some UX changes as a first pass WITHOUT encryption would you be OK with that (at least for now?)

If you MUST have encryption, that's fine, please do me the favor of replying explaining why you need it.

@evan @julian@fietkau.social @julian@activitypub.space @smallcircles re: the Undo Accept thing vs Reject thing, using a Reject is prone to issues with out-of-order deliveries. if you send a Follow and get back an Accept and a Reject with the same published datetime, then are you currently a follower? what if the Reject came first but then you receive a later Accept? it makes it incredibly hard to reason about the distributed state machine, and leads to terrible desyncs when one side thinks you follow them and the other doesn't.

Didn't know Gwen Stefani was catholic tbh

Increasing amounts of metal, such as lithium, as a byproduct of the modern-day space race, are beginning to alter the chemical composition of Earth’s atmosphere. 
Robin Wing, and his colleagues at the Leibniz Institute of Atmospheric Physics at the University of Rostock in Germany, measured a 10-fold concentration of lithium atoms in the upper atmosphere around 20 hours after the uncontrolled re-entry of a Falcon 9 rocket.
The findings are detailed in a new studypublished Thursday in Nature.
As spacecraft reenter through the atmosphere, they slowly disintegrate into smaller fragments that burn up and release metals into the upper atmosphere.
Lithium, as well as aluminum and other metals used to construct spacecraft, vaporizes during atmospheric re-entry.
The researchers behind the new study chose to measure lithium because it’s an effective tracer of space debris pollution and is commonly used in spacecraft.
“We discussed several materials, and lithium gave a good compromise of expected signal and challenges in the lidar setup,” Wing said.
“We know that lithium is present in the aerospace-grade lithium-aluminum alloys used in spacecraft construction.”
Although the risks of space debris falling onto the ground are well-studied, there is very little known about the effects of falling spacecraft on Earth’s upper atmosphere.
Using lidar—a laser-based remote sensing instrument used to measure atmospheric conditions—the team of scientists behind the new study detected a sudden increase in the concentration of lithium atoms,
around 10 times the baseline value found in the atmosphere, on February 20, 2025.
This lithium plume stretched from around 58 to 60 miles (94 to 97 kilometers) above sea level.
The researchers observed the plume for 27 minutes until data recording stopped.
They then traced the plume of pollution to the Falcon 9 reentry, linking its area of origin to the uncontrolled path taken by the rocket on its way down.
https://gizmodo.com/study-confirms-reentering-spacex-rockets-are-peppering-the-upper-atmosphere-with-metal-pollution-2000723932