There's certainly enough evidence to suggest satoshi could be a group, even a multinational group. Its rare even in the followers satoshi spawned for someone to understand every aspect written into bitcoin, its easier to imagine satoshi as a group, maybe having one public facing head that changed over time.
Discussion
Yeah, sometimes it’s hard for me to imagine that one person could have created something it is so complex, with so many implications, but in such a simple design, but who knows, we’ll probably never know