Could it be that he is working on a revolutionary new concept? Or is he working on something stupid like a marketing campaign...
So basically he just posts from time to time that he is working? He didn't give out any details?
Marty: Wait a minute, what are you doing, Doc?
Doc: (dumping the trash into Mr. Fusion) I need fuel. Go ahead, quick, get in the car.
Marty: No, no, no, Doc, I just got here, OK, Jennifer's here, we're gonna take the new truck for a spin.
Doc: Well, bring her along. This concerns her too.
Marty: Wait a minute, Doc. What are you talking about? What happens to us in the future? What do we become assholes or something?
Doc: No, no, no, no, no, Marty, both you and Jennifer turn out fine. It's about your coins Marty, Biff is at it again!