Step 1. Click the green flag and watch the particles as they interact with each other from gravity, every 15 seconds they will reset with slightly adjusted initial positions (-0.1 to +0.1 pixels) and see that that change is amplified over time. Step 2. Move the moose to the top of the screen to adjust the number of particles (you need to click the green flag after) and notice that this is much more drastic with three or more particles. Step 3. Realise that that is why it is called the three-body problem. Step 4. Watch it for another 42 seconds. Step 5. Laugh at people who think it is a solvable problem even though it is actually just an annoying thing that nobody can do anything about (I think). Step 6. Don’t point out any mistakes.