That guy Newton didn’t even know that inertial frames of reference weren’t absolute.
Let’s cut him some slack. He was arguing against a physics system that thought heavier things sank because they have more earth element in them.
Do we know that?
I mean, wasn’t that Einstein guy that said that if it’s true, we will never truly know it?
Hey, he also figured out that things that are moving usually move some more
It never ceases to amaze me how difficult it is to come up with something worthwhile and original (pedants, no need to point out inspiration or standing on the shoulders of giants) without years of work. Art, science, music, whatever. Yeah, there are lucky one-offs, but even something as simple sounding as “For every action, there is an equal and opposite reaction” distills the semi-intuitive into something concrete and explainable.
He also seems to have figured out modern fashion, amazing!
The three laws of relativity unmodified until the twentieth century when John Rambo added the law of special relativity - “when you’re pushed, killing is as easy as breathing”.
or moves at constant speed
Zero is constant