So, I have to grade three answers, and I believe that this explanation of memoryless functions and systems with memory is stupendous. It is brief, to-the-point, and accurate. Someone can read it in a short period of time and still leave with a full understanding of memoryless functions and systems with memory. People should stop man-crushing on Ben's answers, and start admiring answers of real peeps, e.g. you and me. -Virgil Hsieh
