ptolemy
Go with the simple evidence. Don’t try to force reality to fit our assumption.
Let us see if you can give the "real" answer to this scenario.
I am on board a train travelling at a constant velocity along the tracks as we pass a road crossing.I open my window and drop a steel ball from the train.To my eyes the path taken by the ball is a straight line{neglecting air resisitance}from my carriage to the ground below.
A man in the adjacent grass bordering the tracks views my misdeed and,being keen eyed, follows the path of the ball as it drops and witnesses it following a curved path {a parabola}.
This is a great puzzlement since we both witness the same event and yet we come to see 2 different paths,one straight and one curved.Since the event had the same origin and end point in each persons view we are left with the great puzzle of judging which path is the "real" one.
Can you explain this?
And since you know you cannot see yourself,
so well as by reflection, I, your glass,
will modestly discover to yourself,
that of yourself which you yet know not of