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So, this is a basic misunderstanding of gravity and acceleration. The measure of Gs is the exact measure of how fast the acceleration is.
This is just like asking if it would be comfortable to survive 100 C if the temperature was cold enough.
There is no difference between acceleration and gravity. If locked into an elevator, you wouldn't be able to tell with certainty if the elevator started going up, or someone had just turned the gravity of the planet up to make you heavier somehow. If the elevator suddenly dropped in freefall, you would not be able to tell if it was the elevator moving down, or someone had simply turned gravity off somehow. This is part of Einstein's Special Relativity.
While you're right, I think it's pretty clear that the OP meant the change in acceleration or "jerk ."
I don't think we can assume that. This reads like a speed question to me too. But who can ever really know the unknowable mind of OP?
I am unknowing yet an enigma. Also, yes, what I meant was jerk, like how you can reach 6 Gs in a fighter plane.