Q: and this is when he starts to say something rational although pointless and unneeded.
A: the point of this scene (next day, mailman, etc) is to generally keep the ball rolling on the new information and situations, and to continue to keep you guessing as to what is going on. we've already set the stage in 'verse 1' with the name, car, tree and stuff, now the idea is to sort of continue the game.