babbage in, babbage out?!

When checking for the origin of “garbage in, garbage out” on Wikipedia, I came upon this citation from Charles Babbage:

“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.”

following earlier quotes from him on this ‘Og.