Except then you learn that even this “unchanging” sky changed A LOT from the distant past to today!

Like sure most stars where always visible in the sky (always being relative to homo sapiens looking up at the sky and being able to communicate with each other verbally) but their position might have been different…

Except a second is also already defined by external factors so making it shorter actually messes up ALL other SI units/compound auxiliary units…

On first glance I was actually reminded of FesZ Electronics!