Perhaps we can save democracy by replacing the voting mechanism by placing people in groups of 10, and letting them reach consensus before making a vote.
You mean like trial by jury. I like it.
I seriously doubt the wisdom of a crowd goes up when the total crowd size shrinks to 10. I suspect it plummets.
This does call into question the notion of a multiple-jury trial (maybe videoconferenced in, where the individual juries do not interact with each other). Based on this study's findings, it would appear that juries might get their verdicts wrong less frequently with this system.
Imagine if the first OJ trial or Trayvon Martin trial had been before multiple juries; would society have been better off if the results were less dependent on the biases of juries small enough to be cherry-picked?