I understand orientation.
Iβm asking you to explain to me how the world can be moving βupβ for everyone at the same time unless itβs flat.
As an extreme example, how can it be moving βupβ for someone on the North Pole and someone on the South Pole at the same time.
Just to avoid confusion I do not think the earth is flat, itβs demonstrably a sphere and I canβt tally that with your assertion that when you drop something it doesnβt fall down but the earth moves βupβ to meet it.