i would recommand also tuxedo computer, they based in Germany, their laptops offer various keyboards layout, and if you need cheaper option, refurbished pro laptops are a good options, look for informatic broker : they buy by lots from enterprises and the quality is overall good, maybe the battery will be a bit less consistant.

It’s not really science fiction since there are scientists working on it right now, because capitalism is the brake of development. I would invest on photonic computer research, that would help advancement of society in all aspect.

https://en.wikipedia.org/wiki/Optical_computing