Several, and thank you for making me aware of those in the OP, I was until now only subscribed to one of them.

Apache isn't copyleft, not sure why you thought it was

https://xkcd.com/1102/

To a different license that, objectively, is not free and open source.

Yeah just 1096 left for a round number

No, there are no instances whose communities I refuse to participate on. I have never blocked a community, user, or instance here.

Right now I think Harris is more likely to win than Trump, but it would also not be an enormous surprise if Trump wins.

https://www.techdirt.com/tag/elon-musk/

For example on Reddit there is an active subreddit for learning my first language (German), where learners post questions about it and I frequently answer them.

There is such a community here too, and I am subscribed to it, but hardly anyone ever posts to it, so I have nothing to respond to.

Mastodon is mainly a way to get updates from news sites, blogs, etc.

like all wikis, it is not a reliable source, this doesn't mean it isn't useful

The "threadiverse" (i.e. lemmy-compatible communities), yeah. There are still many topics that I would find interesting to discuss, but that nobody talks about here; to the extent that there are communities for them, they get very little activity.

The microblogging fediverse (mastodon-compatible), I think, is popular enough by now, I have no real desire to see even more activity there, can hardly keep up with what I'm currently following there and currently tend to unfollow more accounts than I start following.

On the Internet I grew up on, pretty much anything was ok except to discuss (or even speculate about) the real-world identities of users who didn't very openly disclose them.

Now many people think the latter is ok.

I remember learning in school that breathing through the nose is healthier than through the mouth because your nose is capable of filtering the air to some extent, some particles are going to get stuck in your nose rather than travelling further inside your body.

The problem is that you need very tall tunnels for that. Subway tunnels are usually some of the narrowest tunnels in order to be cheaper to construct and the trains are built to be accordingly small too (an extreme example being the deep-level London Underground lines).

There's nothing technically unfeasible about it. Underground railways with double-decker trains are a thing already, I commute through this station every day, though usually with a single-decker train; this is a mainline railway served by both single-decker and double-decker trains (the latter pulled by heavy locomotives, you can't see that on the other photo because that is the other end of the train).

Can we stop blaming platforms for what their users post on them?

It's not TikTok, Telegram, Twitter, Mastodon, Lemmy spreading misinformation (or correct information for that matter), it is their users. People used to understand this, somehow they don't anymore.

Quick reminder that the "Nobel prize in economics" is not actually a Nobel Prize.

(I didn't know this for a very long time, so this may be news to some people reading this.)

I have tried before whether I could do it, the answer was no, and I don't feel I am missing out on anything.

I have no idea who you are or what else you have ever posted to lemmy or anywhere on the Internet. I assume that when people on the Internet talk about their experiences, they are probably telling the truth; only if it is plainly impossible or implausible that it might ever have happened to anyone do I start to think they are lying.

eh ned, das hat noch nie den geringsten Sinn ergeben, neoliberale/libertäre Ideologien in die Nähe von faschistischen zu rücken, es gibt keinen größeren denkbaren Kontrast, aber versuch das einmal, in linken Bubbles zu argumentieren ...