This is a dumb question. Thank you for your patience. I understand that acceleration and gravity are one and the same---- as are their effects . Is this to be understood as the earth really accelerating under us , this motion being the force of gravity -- the earth rising up to meet us so to speak making it impossible for us to fall off as its' surface is always coming up under us? If this most likely utterly wrong idea were to be really so it would lead to two other questions-- where is the earth's ' supposed acceleration going to or coming from and why---- and what happens to the classic Newtonian, Gallileo match of mass and weight and the earth's gravity in such a case? Thank you.