I wouldn’t call it “measured in inches” as much as they are “named” with a partly numerical name, which may or may not be an adequate correspondence with a different country’s length scale.

It’s similar with bicycles: many tires are named in inches. Two tires with the same number of “inches” may however not have the same diameter, so to translate size-names into measurements is fraught with pitfalls.

It’s significant already. If I get the math right (warning, I’m on my phone in bed at 3am and it’s been 10 years) I think that a 1 inch chip running at 3GHz clock rate could, if you aren’t careful with the design of the clock network, end up with half a clock cycle physically fitting on the chip. That is, the trace that was supposed to move the signal from one end of the chip to the other, would instead see the clock signal as a standing wave, not moving at all. (Of course people has (tried?) to make use of that effect. I think it was called “resonant clock distribution” or some such)

You assume I’m ever “about in public”?

Swedish. Of course, these all lack three letters. And I don’t think this tool counts special characters?

I still run a fairly old dell laptop with 4k screen, and fedora 41.

My experience is that i needed to set dpi, scaling, and font sizes separately for kde and gnome apps, Firefox is a story in itself, and one app that I quickly stopped using - partly because I could never get it to listen to dpi settings no matter what I did - well, I recently learned that it could be used on a 4k monitor if one first were to set the right environmental variable. Tough luck, I already went with a replacement app.

Right now I only have one app that needs further custom tweaking to be legible, but since that’s only running in the background anyway, I haven’t bothered. So in short, for most apps it’s possible to configure them, but it is a pain point.

Will not buy another 4k laptop.

Lemmy, no. Reddit, no. Fediverse: there are a few people (less than a dozen) that I have met IRL (“know” may be a strong word) and also have a more or less strong presence in the fediverse, primarily Mastodon.