IF you observe 3.5% of a population protesting, maybe it means enough people BEYOND that number, who are NOT able to go protest but are also upset, are disgusted by the regime, that the regime is likely - again, LIKELY - to be toppled, by either elections or otherwise.
That 3.5% index is flexible, too, depending on internal circumstances of the body politic, culture, regime hardness, level of oppression, etc etc etc...
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