The problem of sun radiation can be mitigated by dwelling underground as many early humans did so

The same you could say with “conversative” term meaning. In the original meaning it was “not willing changes” not “far right radical” whatever it means ( right now it’s considered to have conservative people in that group by left wing people )

Seriously, if you do take one verse from the whole response, you get straw men you fighting with.

I just told you that jabber / xmpp was created in the times almost nobody knew or believed mobile phones can be a thing. Thus it got created in that way: many similarities of xmpp and e-mail, irc or icq which didn’t stand the passage of time.

Of course, you’re right xmpp evolved to get PubSub extension as an “optional feature” but because of its availability (or rather lack) - most servers didn’t support it even the client did support, xmpp didn’t win the acceptance of the end-users. It got some attention in the business world (cisco jabber) but not in the retail.

Business cannot work forever without clients willing to pay or at least use, so it died off even in the business.

End of story, try not to fighting with the straw men you created.

XMPP is very old and was created when nobody knew about mobile phones. It worked more like true messaging app less than messages store ( unlike matrix ).

Requirement of permanent tcp ip connection doesn’t work well for mobile + pretty much useful feature in xmpp ( like message history ) is optional. If something doesn’t work in xmpp most people would blame xmpp / jabber rather than the lack of feature support in their server

Mastodon offers rss for both keywords and users

Hmm, what alternative? XML :-)? People hate Grade DSL just for not being xml

Coal is a basic substance, so it is in the space. Maybe there is not likely oil or gas ( although I believe methan should be pretty much available everywhere as it’s simple substance ), uranium will be in space for sure. Maybe even mining dead stars or close to dead would be possible in the future, who knows

This means space colonization. Here is the problem: 1) either we meet sooner or later aliens whom we don’t whether they are dangerous and hostile 2) we discover we live in a simulation but still every simulation has its limits ( like maps in the games )