It can be combining something disparate. With Greenberg , for example, I had the idea with the character and I wanted to make a movie in L.A. and about L.A. Then I put the two things together and that was the movie. With Francis Ha I wanted to do things in black and white, in New York, and with Greta Gerwig. These are the more conscious things.

I know what you mean, but there are two kinds of voids, the one that you work with and the one that you bear. I work with and try to generate a void. I pick up the guitar and I let my mind wander until it gets distracted and suddenly it lost its purpose. It’s just wondering between one chord and the other, one subject or the other, or maybe I would just be distracted watching a film and something moves me, or the light in the window and then I let that feeling guide me. I always use this metaphor. It’s like getting into a garden at night and suddenly perceiving a perfume of a tree or a flower. You don’t know exactly where it’s coming from, but you know there’s something there, so you start sniffing around until you find it. You get closer and closer to the source until you identify it. That’s the way I write. What I mean is that suddenly something crosses my mind and I just follow that. I try not to lead at the beginning. I try to follow and then whenever I find that I take, I use reason and I organize. I say, “Wait, I need a second part with the same structure. I need a bridge. I need a chorus. Let’s go. Let’s move to this place. Let’s change this rationally,” but the core has to be subconscious.

A typical day is probably lots of meetings and stuff. But if it’s an idea that we’re developing, what might happen is I might talk to some of the people in the lab, maybe have them come in the office and brainstorm with them, and say, “Well, here’s a problem that we need to solve,” or need to solve better. So just as an example, when I had this idea that we could create better materials, I got about four or five people together with different backgrounds — chemistry, engineering, safety, toxicology — and we started putting chemical structures on the blackboard and say, “Well, this might work,” or “This might not be safe,” and ended up with certain structures that we thought would be good. And then, one of the guys would go out and try to make those structures, and we’d go from there.

I can’t say there’s a specific place to begin when it comes to creating virtual identities, but it’s important to consider them in the longview. What stays here—in web pages, caches, and hard drives—might be the things that people retain of you in the future ahead. Where scholars might spend years studying the journals and letters of our predecessors, these personal accounts are infinitely more robust. Even if it is a private pursuit, an external drive full of personal exploration can be such a gift to those not here yet.