Although, it seems it's only going to cover the first book (which makes sense, given how difficult the other two would be to film). The real magic for me was in book 3. It was inspiring to see someone think so far out, so boldly.
It's not that unusual in SciFi (and even some Fantasy).
I didn't like the way this series did it. I personally prefer Asimov's take in The Last Question. It's all well and good to ask the elderly to commit mutual suicide for the sake of the yet-to-be-born, but assuredly there would have been newborn young species (not to mention the youth of old species) even in an old universe. Sorry youngins, to Moloch you go!