Does gravity cause length contraction and mass inflation like motion does?

[cesiumfrog]

You are completely wrong. Answers like this cause people to be utterly confused about relativity.

Surely to have been completely wrong, what you quoted would have to be factually incorrect, so please enlighten me. Do you propose some conception of inertia which does not eventually grow as velocity (relative to the frame of reference) increases? Care to share your preferred explanation for the nonconstancy of the acceleration of a body against which a constant force is applied (say as by a uniform electric field)?

Any beginner in learning about relativity should readily understand that just because something is moving near light speed with respect to an accelerating object does not mean that it interferes with the ability for that object to accelerate.

Uh, ok, unless you misunderstood what you objected to, I don't see why you felt the need to point out that "something not interacting with an object doesn't interact with the object"?..

The relativistic mass of an object does not undergo a proper acceleration, the rest mass does.

Does anyone understand what Passionflower meant by the above sentence?

Regardless of the rate or duration of proper acceleration any object will measure a speed of light of c forever.

Really?