Methods get() & copy() from class PVector do the same clone action when invoked w/ no argument.
Nope! Clones are different objects initialized w/ the same content as the original object.
B/c a cloned object is separated from the original, we can mutate the content of either independently w/o affecting the content of the other.
Take notice that each object has its own memory address (a.K.a. pointer or reference), even if they happen to belong to the same class w/ exact same content.