Originally Posted by rickair7777

It doesn't, but somebody has to do it because there are always people pushing the boundaries, and society does tend to naturally evolve over time.

If the executive (including state/local) accepts SCOTUS interpretations, and the people accept the subsequent executive behavior, then it stands. If they don't, then you may have a problem...

SCOTUS is generally wise enough not to push boundaries to the point where something breaks. Stretches, yes. Breaks, almost never. One might argue that the Dred Scott case contributed to the onset of the civil war, but that might have been unavoidable anyway.