In the late 1800s, French inventor Léon Bouly made a device called a Cinématographe (Cinematograph) that could both function as a film camera and a video projector. So you could go out and shoot, bring the camera inside, invite the friends over, and project your movie. How cool is that?
Modern digital projectors are getting smaller and smaller, and HD digital camcorders are already tiny. 118 years later, when the heck is someone going to combine these two devices again?
If you’re a venture capitalist and want to make this happen, let me know.