You are correct, I should have said there was an atomic clock out the window that the walker looked out at.

https://www.quora.com/What-if-you-walk-forward-on-a-ship-moving-at-light-speed#:~:text=You would experience nothing.,of travel wouldn’t exist.

Because of relativistic effects, from your point of view on the train you would just walk forward. But you would notice a strange effect while the trains were accelerating: your atomically synchronized wristwatch the clock you can see out the window has slowed down and stopped counting time. So it seems that your journey to the front of the train takes no time at all.

From someone standing on the side of the tracks catching a glimpse of you and the train as you whizz by, the front of the train is moving at light speed. You’re at the back of the train completely frozen still, unable to move forward because the front of the train is moving away at light speed.

Weird things happen when you’re talking about the limits of physical reality.

Sound is air vibration

Sound is not exclusive to air, it can be generalized to vibrations in any media. Whale song and dolphin echolocation are certainly sounds, and we’re almost always talking about them propagating in water rather than air.

which has to travel from one place to the next

No, that isn’t how sound works. In air this would be a description of wind, not sound.

just transfer kinetic energy to the adjacenct atom

This is actually a good description of how sound waves propagate.

Also, interplanetary timezones and leaps.

No, not used in English. I think the equivalent is coup (which comes into English from French).

“Err” generally sounds the same as “air” as most people speak it, at least in the accents I’m familiar with. Think of how error sounds.

and air on the conservative side.

err

Yup, the arugula/balsamic combo is the same way I’ve enjoyed pear pizza. Delicious.

Pear works well on white pizza

1. Boost has a certain app version. You can install the latest or find some older APK version to install, but older versions will only support a certain range of server versions.
2. The Lemmy instance you register with and use will be running a particular server version. There is nothing you can do about this, it’s up to the instance admins, but most instances are going to stay relatively up to date because lagging too far behind could cause federation/interoperability issues.

So even if making a new account on another instance running an older version works, it will only work for some period of time until that instance updates.

I’m not sure what bug you’re experiencing exactly, but it sounds like it could be either server side or app side. Either way, just sit tight and wait for a fix to be published.