The idea that gravity is equivalent to the ground coming up to meet a

falling object is clear evidence of the failure of Relativity. Only

the ball has gravity acceleration through space or weightless

acceleration.

The station does not accelerate through Earth's space to get closer to

the train. The train comes to the station period. It can be tested by

the clock. The station's clock will run fast or normal because it is

not moving. The train's clock which has accelerated though will run

slow by the Gamma factor of its speed. Compare clocks as the train

passes the station.

Mitch Raemsch Twice Nobel Laureate 2008