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How so - even doi links?

Yes, the child safety is very necessary. The simplest solution for simplex would be simply the "parental control" like restricting the contacts or allowed groups by checking by the phone number or imei with no client side scanning... However, EU is to force such client side scanning.

As simplex is open source, clones could show up with no restrictions but this can be prevented with the blocks on the google play (parental control) and so on. Of course, you can never solve the issue with completely new phone with the sim card bought on some "homeless" person but there is no bulletproof solutions.

It's worrying trend that EU now chooses the worst solutions for quite long time

Simplex was bubbling about implementing CSAM. Any client mentioning it is not safe, period... Child safety and hate speech is always an excuse for tolitarian regimes ( sittenpolizei ) never a true approach for solving the issue ( child safety )

Friend of friend networks, that's how classmates have benefits created ( a prototype to "prove" 6 connections theory )

Web of trust - did you hear? https://www.gnupg.org/gph/en/manual/x547.html

You can use gpg signatures

Switzerland is in Schengen area and in EFTA but not in EU.

Try asking DeepSeek something about Xi Jinping. "Sorry, it's beyond my current scope' :-) Wondering why even it cannot cite his official party biography :-)

They do very often, not every time but they do. I faced it several times so I did finish my subscriptions (both youtube music and youtube premium)

They force paying customers ( yt music premium & yt premium ) to disable ad blockers, too. Why? If I accordingly to the contract shouldn't get any ads why they would need to punish for blocking ads which shouldn't exist :-)?

Optical drives already are surpassing magnetic or even ssd. https://en.wikipedia.org/wiki/Holographic_data_storage it's more advanced version of optical drives, for obvious reasons it's just a prototype and most likely it will stay so for quite a long time but still, optical storage hasn't reached the limit.

From wiki: https://en.wikipedia.org/wiki/Archival_Disc

Sony used Archival Disc in their Optical Disc Archive professional archival product range, and aimed to create at least a 6-TB storage medium. As of 2020, they offered 5.5 TB Optical Disc Archive Cartridges.[14][15][16]

That limit I mentioned has nothing with the 'technological limit'. Simply enough they lost with the adoption - if the clients wanted, they would get bigger archival discs.