On the other hand, the quality of the people developing the kernel seems to be higher than those developing systemd, or at least that is the perception I get from reading all the hate on the Internet.
Hint: That is not a reliable indicator.
Not really 40 years that would be about edition 5 and the Bourne shell was not even invented yet. The SysV init, especially the link farm aspect, is quite different to edition 7 init or even BSD 4.3 init. Once
inetd used to be configured by a single file not a collection of files in
I venture to suggest that if you took a unix sysadmin from 40 years ago forward in a time machine they would be pretty much at sea configuring any modern linux and I don't think their learning curve would be any steeper for systemd based init than sysV based init. They would not be familiar with xinetd, they would not even be familiar with inetd. If your mail isn't getting, and they were from 35 years ago they might waste some time work out where the uucp configuration had gone. And this is just the start. A LOT has changed in 40 years. Think of typical sysadmin tasks such as installing software and configuring printers, GUIs, networks, firewalls and httpd. And what is this "grub" and how can I reboot without console toggle switches and how do I change a disk pack? FWIW I no doubt count as a "greybeard", and I personally regard the SysV way of doing things as a wrong turn, but I am still not too old to learn systemd. I found the documentation adequate (or even good by linux standards).
old school AC transformer units have miserable efficiency and are both heavy and bulky.
I'm not quite sure what qualifies as "old school" but AC transformers even at 50/60 Hz can be quite efficient though I grant you, they are heavy and bulky.
Apart from size and mass the big advantage of switch mod power supplies is that they can be regulated with no appreciable loss in efficiency. The alternative is pretty much a linear regulator and that combination (of transformer and linear regulator) tends to have miserable efficiency.
So you would say it is OK for a hotel owner to refuse service to blacks?
It's like virtual particles. Particle (cash) and anti particle (debt) pairs can spontaneously pop into existence. So all we need is a black hole to swallow the debt and cash is the equivalent of Hawking radiation apparently emitted by a black hole. I surmise that the worlds current financial problems are due to the black hole(s) finally evaporating.