No, I’m never sure.
I take the word of the primitives at face value.
Which means I usually end up with egg on the face.
If someone could set me, and everybody else, straight on the Zbigniew primitive, I’d, we’d, appreciate it muchly.
My problem, in addition to taking primitives at their own words, is that I’m tracking about a thousand of them, and they tend to get blurred in this mind.