I thought of that approach to the science problem, but I just don't think you can hand the big "disqualify voters en masse" stick to the political world and not expect them to use it. It absolutely would start out as you describe, but the pressures to exploit the non-scientific views of any of the major political orientations would just be too strong, and any attempt to fix those problems with further rules cause their own problems. (The first one that leaps to mind is "kick out any question that 60% of the population doesn't get right", but I can still play a lot of nasty political games within that constraint.)
I thought of that approach to the science problem, but I just don't think you can hand the big "disqualify voters en masse" stick to the political world and not expect them to use it. It absolutely would start out as you describe, but the pressures to exploit the non-scientific views of any of the major political orientations would just be too strong, and any attempt to fix those problems with further rules cause their own problems. (The first one that leaps to mind is "kick out any question that 60% of the population doesn't get right", but I can still play a lot of nasty political games within that constraint.)