english: Stewart Brand: Well, the earlier point is we interfered in a big way by making these animals go extinct, and many of them were keystone species, and we changed the whole ecosystem they were in by letting them go.
non_english: Stewart Brand: Nou, het voorafgaande punt was dat we enorm hebben ingegrepen  door deze dieren uit te laten sterven. Veel daarvan waren sleutelsoorten. Wij hebben hun hele ecosysteem veranderd door hen te laten verdwijnen.