> you cannot give someone physical evidence of how their vote was cast, because it makes voter coercion feasible Some countries try to solve this with an exten

> you cannot give someone physical evidence of how their vote was cast, because it makes voter coercion feasible Some countries try to solve this with an extended voting period and by making votes repudiable / changeable up until the end of the election. Another solution is generous whistleblower rewards and significant criminal penalties. There are tools outside the ballot box to prevent crime, and extortion is a crime regardless of whether there's an election going on or not. (If you bake deniability into your system, you lose the ability to let voters prove to others that their vote was miscounted, so receipts lose a key feature at that point.)