For that issue, I think that as any medium ages, it transforms from "explore" to "exploit", which is also why films have a lot more sequels and reboots.

So, if you want more range, explore new media: games, youtube, etc.

I've never agreed with this argument, it just felt like an excuse. For 100 years movies kept changing as society also changed, and all of a sudden they hit the exploit phase somehow after 2000, when GCI was still improving.

Movies are in part a product of a social climate, and that climate is never static, so to me it seems like there should always be something to explore. It just seems that financier no longer want to put any money in exploring, and culture becomes poorer while the GDP grows.

Even BttF itself was three films, and in the second one was parodying the tendency towards sequels with the holographic Jaws 19.