I am not completely sure, but this is how I would order these events: Viola enters Orsino's court dressed as a male. Olivia asks Cesario about his parentage. Feste returns the ring to Cesario that Orsino had given to Olivia. Sebastian reveals to Antonio that he has a twin sister. Malvolio makes a fool of himself in front of Olivia. Antonio offers to take Cesario's place in the duel.
Bradbury's short story, There will come soft rains, describes the extinction of mankind after a nuclear holocaust in the year 2026. He portrays his idea, when applied the there will come soft rains, in the main theme that before the destruction of human race technology begins to outlast and outpace humanity.