I always thought that, out of the Clarke novels, “Songs of Distant Earth” would make a good movie adaptation. Rama may turn out unrecognizable after the Hollywood script jockeys have been through with it, as happened to Foundation. (I actually like the Apple TV version, but it’s definitely its own thing.) For sci-fi takes on truly alien first contacts, Lem’s “Solaris” still holds its own, and the Tarkovsky movie is i…
SPOILER WARNING
My interruption is that Area X/The Crawler is a probe built to study and build a bridge back to its creator. Area X is expanding because it's the inside of a wormhole. But whatever is on the other side is long dead, and the probe is acting on instinct.