It really shows what we have on this planet. The diversity. The technology. Emotions. Languages. Maybe not everything, but this is more like a teaser for a movie. It shows just a little bit. To know everything, you'll have to come and see for yourself. The funny thing is that many to the sounds near the end are no longer commonplace. The sound of jets has changed (only fighterjets sound like that and you don't want to send that into space if the message is peace and love), propellerplanes are rare, trains are electric and no longer sound like that and the large cruisers are diesel driven and only the horn has remained the same. I also heard a horse and carriage and an oldfashioned rocket. It not only shows the space dwelling creatures what we had back then and have had further back in the past. It is also a recording of how the world changed in these 30 years. Still makes me wonder what I would pick. Maybe I would include the sound of a data center...