1 Answer. The total US domestic market is 629,457,532 scheduled passengers per year. It is true that Delta carried the most total passengers in 2010, but that includes BOTH international and domestic passengers. For domestic only, Southwest was the largest carrier in the US.
A universe where the very laws of nature are different â for example, one in which there are no Laws of Motion â would in general count as a parallel universe but not an alternative reality and a concept between both fantasy world and earth.
1 Many novels combine both, often as a metaphor for the different directions humanity can take in its choices, ending up with one of two possible futures. 2  Both utopias and dystopias are commonly found in science fiction and other speculative fiction genres, and arguably are by definition a type of speculative fiction.