You and I, like molecules, have attraction and repulsion.
Like everything, there is always inertia.
When I'm in the water, I'm always buoyant.
There is friction between you and me.
There is no moving pulley between us to save labor,
There are only fixed pulleys that can change direction.
Use a spring dynamometer to measure the force between us, but there is always only one indication.
Every force has an agent.
Without it, the force doesn't exist.
Who will start the love between us first?