Many classical email clients have the option to edit the senders address while composing the email. If the mail server does not allow this you usually get an error message on sending.

You are technically correct in saying that it’s not a registration. Instead it’s a sponsoring: https://en.wikipedia.org/wiki/Sponsored_top-level_domain

Actually using AI gibberish for this might be the best strategy of all, since Reddit seems hell bent on making money with AI training and feeding AI generated text into AI training has been shown to yield increasingly worse results over time. So you make the product Reddit is selling less attractive.

So what do you think when you work with HeLas?

centigrade

and he was doing so well until this abomination 😡

Do you mean oldest as in invented the longest time ago or oldest as in that specific technological artefact that i use is the oldest one i have?
For the first one i guess cooking?
For the second one its definitely my microwave oven, made in 1991.

There is a limit on the spacing of the colour bands though. If you want colours then you have to hit the spots where the correct phosphors are and this limits the usable resolution.

So, i read the “Red Mars” trilogy. I also keep up with research into the Martian atmosphere, its soil and geology.

My take is that all of this is still a pipe dream as much as it was 30 years ago when we did not know many of these things.
People don’t want to see just how hostile Mars is to life. They pick a couple of the most obvious problems (e.g. radiation, no liquid water, no oxygen) and then they look for the first solution that seems viable and then declare Mars somehow liveable because look we can just implement those things.

But they are completely ignoring that: none of these proposed solutions have been implemented at scale yet, at least not outside of earth’ atmosphere, there are hundreds of other known problems that often just don’t make it to the head lines because they don’t look that interesting or threatening (example: dust is suuuuper deadly on Mars, probably even worse than moon dust) and many problems will undoubtedly only become obvious once living beings are on the surface of Mars.

I am glad that there is hard sci-fi dealing with some of these problems in very optimistic ways, because we should try to better our understanding of them and not just give up, but we also should not have any illusions about how hard this task is and that this can take centuries of work.

Most modern operating systems randomize the MAC.

[citation needed]
having the option to randomize the MAC is not the same as actually doing that. There are also a few downsides to random MACs, like captive portals not remembering you on public WiFis.

You mean server? If so, the server is also open source

That is what i meant. It is OSS but not FOSS because you need a key to start it.

Bitwarden has a FOSS client app and FOSS server apps exist (though the default service is not FOSS).

Syncing 2FA keys brings the danger with it that you accidentally sync the key to the device that is used for the first factor thus making it not 2FA anymore.