Jacob tells his brother, "It only ends once. Anything that happens before that is just progress." Could the island be a source of many of civilization's greatest inventions? Couldn't Jacob have invited famous men throughout the centuries, like Alfred Einstein or Thomas Edison to the island to help him fix his mistake. In exchange, maybe Jacob let them keep some of the inventions they created from experiments on the island. Like radio technology, or the light bulb, and maybe even the "wheel". Jacob learns more about the island and comes closer to resolving his mistake. Perhaps gaining insight on how to defeat his poor, messed up psycho brother, In any case, all of this would be the Progress he likes to talk about.