Comment by tialaramex

Surely your statements are just corollaries which are noticeable with fewer users ? Hyrum's Law is more succinct because of its prefix, "With a sufficient number of users".

And I think we do see small systems where all observable behaviors are indeed depended upon, lots of trivial systems exhibit exactly this property, it's just it doesn't trigger the part of Hyrum's Law that apparently annoys you - "it does not matter what you promise in the contract" because if anybody did write a contract it would state the entire behavior, no surprises are possible.

And that permits a valuable conclusion from Hyrum's law. It's better to design my interface so that it's so simple any fool will use it right, than to document all the weird sharp edges of my interface so that I can potentially win an "Um, actually" episode each time a fool cuts themselves on the sharp edges. That's not always possible but often in our industry it's apparent nobody was even trying.