The wake of the ship doesn't drive the ship anymore than the tail wags the dog.
“On two occasions I have been asked, ‘Pray, Mr. Babbage, if
you put into the machine wrong figures, will the right answers
come out?’ […] I am not able rightly to apprehend the kind of
confusion of ideas that could provoke such a question.”
—Charles Babbage, Passages from the Life of a Philosopher