The word supposition refers to the quantum superposition, the third bit of the logic processor that is the sapient brain. It is the bit (trit) in addition to true and false (1 and 0) that makes it possible for us to imagine, theorize and realize.
The term operant reality acknowledges that what is acceptable to consider as real is always undergoing revision. For example, when I was a child, it was not acceptable to consider as real the existence of intelligent extraterrestrial life; today it is.
The celestial spheres that Atlas holds on his shoulders represent operant reality held in the superposition.
A gift for my father, this rabbet-jointed box is poplar with a maple and oak veneer.