Probably for themselves only.

I maintained a CEPH cluster a few years back. I can verify that speeds under 10GbE will cause a lot of weird issues. Ideally, you’ll even want a dedicated 10GbE purely for CEPH to do its automatic maintenance stuff and not impact storage clients.

The PGs is a separate issue. Each PG is like a disk partition. There’s some funky math and guidelines to calculate the ideal number for each pool, based upon disks, OSDs, capacity, replicas, etc. Basically, more PGs means that there are more (but smaller) places for CEPH to store data. This means that balancing over a larger number of nodes and drives is easier. It also means that there’s more metadata to track. So, really, it’s a bit of a balancing act.

could be used for social welfare systems

For needy billionaires, maybe.

Finland was no NATO and not even the USSR touch it.

If you omit the middle of the 20th century, sure. The Finns declared independence from the Russian Empire in 1917, under the approval of the Bolsheviks’ Declaration of the Rights of the Peoples of Russia. In 1934, Finland and the USSR reaffirmed a non-aggression pact for 10 years. In 1939, after penning a deal with Hitler to carve up Europe between the Nazis and the USSR, Stalin demanded that Finland, who had maintained a stance of neutrality, cede territory for military use and, when they refused, ordered shelling and invasion.

Neutrality or even open trade did not prevent the USSR from invading then, not did handing over nukes save Ukraine from invasion in 2014.

Ad-supported software is not free.

Which was the style at the time…

Having worked in a datacenter somewhat recently, I can assure you that cassettes are still in use. Now, they manage to fit tens of TB in a 4"x4" square.

They connect to other devices and report their locations. There have been several cases of them being used for stalking.