Charlie seems to have entered a Zenlike state of indifference where it comes to making movies: if I makes a movie, great; if I don't, that's fine too. On the surface this might sound bad, but really it's a pretty good approach, if you ask me:

It’s probably gotten less and less urgent for me to make movies over the last five years, sure. I’m getting older. My life has changed in a lot of ways. I just don’t feel that ambitious in that way. I don’t feel like I need to be part of this. I have a weird, antagonistic relationship with the business.

Right. But you’ve always had that.

Yeah, but I think a lot of the antagonism before might’ve been more, “I’m angry that I’m not getting to do things.” And now it’s sort of like, I don’t care about it. I don’t want it. I mean, I like working with actors and I like making movies. And if it happens, cool. But if it doesn’t, fine. That’s how I feel now. And it feels better to me.

[...] You know what happened? We’ve hit Anomalisa. We made it ourselves. We made it in the middle of nothing in the middle of nowhere. We didn’t know what we had. We finished it. We started sending it to Telluride and Venice and Toronto [film festivals], and these people went crazy for it. And it won! And everybody was bidding on it to buy it, because we didn’t have distribution. And we won the Silver Lion at Venice. And I thought, holy cow. And then … nothing happened. The movie didn’t do any business. And I really felt weird about that, because this is the second time that’s happened to me. And it’s like, I just stopped caring. And this thing with Netflix is … It doesn’t matter. There’s no box office. The movie will play on Netflix forever – and it won’t disappear in a week because the box office isn’t doing well. And that’s fine with me. And so, that sort of pushed me in the direction of not caring I think. Not that I don’t want to work or not be interested. It just means that it’s outside of my control. (Source)

That's via an interview at Uproxx.