We’re competing with “it’s already installed” though, not installing Windows from scratch.
Installing any OS is a huge step up for most people.
The real change comes when manufacturers start giving the choice of pre-installed OS. Some already do but they are pretty niche (e.g. Steam Deck).
I disagree. The angle of the sun is not a human invention. Trying to invent something from scratch based on that, I would definitely mark one time as “the darkest” and another “the lightest”.
I agree that hours, and therefore date lines and time zones are completely arbitrary though.
If we didn’t have hours we’d still need a way to group times by geographic or political regions; my example above still needs to handle the “lightest where?” question.
I think my conclusion is that organizing people and societies is arbitrary by nature.
It would be neater though to try to make midnight and mid day the basis for which we measure time. Stepping off of that makes it even more arbitrary.