Therefore...
I hope that I have given you a suficient explanation of why the silly auhor is redundent and why the notion of authorship is really nonsense. I hope you are smarter than silly Foucault and can see that the author is really redundant because he serves no function, we can think for ourselves, it is ultimately the ideas that are important, and every author carries with him baggage that affects the reading of the work. Thus it is clear that the notion of authorship is arbitrary and unnecessary.