Hi Craig,
You are still missing the point by not reading the post correctly.
I said the
force of gravity doesnt exist. It is a fictitious force like centrifugal force and the coriolus force.
I did not say that gravity does not exist.
Sure, in high school they teach about the force of gravity, but as I said, this is a mathematical construct to explain the effects of gravity. Now the formulae work and produce the correct answers to explain the effect as our inertial frames experience them.
When you are driving your car and you accelerate wildy down the road, your body and senses tell you that you are being forced into the back of your seat.
There is no "force" pushing you into the seat. Your inertia tries to keep your body the way it is and your car pushes into you as its accelerates. As you start to accelerate with the car the feeling of being "forced" into the seat goes away as you have now reached the sames velocity as the car, unless of course you have a special car which does not stop accelerating.
If your car was travelling at a constant speed, but turning then your car would be accelerating whilst turning and so you feel the effects of the "fictitious" centrifugal force. Once again the car is turning into your inertial path and not another force acting on your body.