Dear Zanthius:

On Feb 1, 8:14*am, Zanthius wrote:
On Feb 1, 3:54*pm, dlzc wrote:

Yes, the whole idea is bollixed up. *Spacetime
is a mathematical abstraction, and does not
disappear down Alice's rabbit hole. *Neither
"falling space" or any of its variants make any
sense whatsoever. *If you want to waste time
on another fairy tale, try "LeSage gravitation".

Well, if the earth was a spaceship and I am
pulled towards the ground, then the earth
must be accelerating upwards for me to feel a
a force of 1G downwards.

Yea, too bad that "acceleration by gravity" is fundamentally different
than acceleration by a force system.

If you fire thrusters to change your orbit, you feel a force upwards
by your seat (or other ways by straps). When you are on Earth,
Earth's surface applies a force to you to keep you from proceeding
along your force-free geodesic... an ellipse with its major axis
aligned to your current position. Still no need for "force actors" to
get gravitation.

David A. Smith