The Experiment: The feeling of falling?
You are in a room, there is a hatch in the floor, the window only shows a few clouds, or fog. There is a button that opens the hatch. If you jump through. you fall… through clouds, past birds, past a plane, past skyscrapers, into a huge hole (maybe volcano?) into caves, through the earth into the magma, fiery centre, up through the same, out onto Chinese scene high into the air and in through a hatch on a small floating “island” repeat.. if you want…
Maybe NOT use genuine gravity, use paths, and fakes speeds…(rollercoaster effects?)