Rob1968 wroteI find the history of rules changes very interesting, as the game evolves. So often, one change leads to a progression of refinements and further clarifications.
Which, in some cases, makes it difficult for veteran officials. "Twenty seconds, or thirty seconds, for an injury "timeout"?"
Also perpetuates "myths" for veteran coaches, and older fans. "Closely guarded five second violation? But he made a move to the basket?"
Learning rules, and dealing with rule changes that improve the game, are why we get paid the big bucks.
"The only difference between a rut, and a grave, is their dimensions." (Ellen Glasgow, American novelist)