A straight-faced James Lipton posed this question to James Cameron while taping an upcoming episode of ‘Inside the Actors Studio’ a source told Uinterview.com.
Once the audience’s laughter subsided, Cameron paused from laughing and responded, “Because this is a movie for human people.”
That’s an extremely good answer, and I really appreciate it.
But…
It’s really not going to cut it for the type of fans who have their high school physics class compute that the Ringworld’s land would all fall into the sea after a couple of centuries.