I would like to use Box2D to simulate a small world, with entity sizes around 1cm (0.01m), some smaller than that.
Box2D's FAQ says twice:
Your moving objects should be between 0.1 - 10 meters.
You should try to get your moving objects in the range 0.1 - 10 meters, with 1 meter being the sweet spot.
I cannot simply multiply all my numbers by 100, because the simulation would become unrealistic (very slow gravity etc).
Is it possible to simulate my world using Box2D?
I'm wondering for instance if it would be possible to scale all the numbers by 100 and transform all the forces and the velocities I apply to the bodies (including gravity) by some factor.