The person in the seat behind you who is explaining to the surrounding three or four rows of seats the inner workings of a particular airline, aeroplane and/or airport will have travelled on that airline, aeroplane and/or airport a maximum of two times previously.
If you are travelling as part of a larger party, everyone's baggage will come of in the first 20 or so bags apart from one person. That person's luggage will be last if it comes out at all.