That's correct. Now check out physics, I mean a real scientific effort to master physics. Guess what you find out? "representing a moving physical object with a single point is not mathematically accurate, but suits our purposes" How do you build big lies? with lots of little lies. and winks and nods. Tell me what electricity is. No... I didnt ask how it worked or what its properties are. Tell me about what it is, how it came to be and from whence it is derived. Spoiler alert: you cant. No one actually knows these things. We pretend .... a lot.