Credit: Honors Communication Design Class at Spalding HS. This design is simply yet powerful. The fading letters create an emphasis on the first two letters in each word, but you still see the message they are trying to send which it "don't quit".
Estragon seems to have a faulty memory, forgetting things that happened the previous day, or not remembering that they are waiting for Godot. Anything that is not currently happening is not important to him.