As in the third law of motion? Every action has an equal and opposite reaction?
Also the first law and the idea of inertia that something won’t change its state unless acted upon by an unbalanced force. I think a lot of human action is merely a result of inertia. We don’t often change the things we do until we are forced to.
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Very good point! I now see that my grasp of Physics is rusty haha
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