Bullshit. You know the steel wheel is harder to turn than the identical looking aluminium wheel.
A steel ball is harder to turn than an identical looking hollow plastic ball that is identically sprayed to match the look of the steel ball.
Why would this be?
And you know that inertia does not do anything at all . It is a word.
Thank you. That's all I asked. Inertia does not do anything. It is just a word.
Now then, we can discard inertia from reality and use if for fantasy only, so it doesn't interfere with real science.
You know the word describes something useful to humans
The word describes NOTHING. You admit this yourself. Nothing is not useful to humans, because nothing does not exist to be anything to anyone or anything. Just like the word, inertia.