Politicians are amateurs. I don't mean that in a pejorative way. Politicians are experts at politics, they can achieve consensus in seemingly impossible circumstances. If you pick a random politician, and ask them to design a transmission, or perform open heart surgery, they'd do as poorly as you or me. Yes, there are politicians from all walks of life, and you can probably find a surgeon politician. In general, the…
Contrast a politician with a juror. There's no real reason for a juror to focus on anything but the case at hand. They don't have a career as a juror to pursue, yet they're expected to learn about things relevant to the case. There's almost no personal incentives involved (which also happens to be heavily policed) besides scheduling. Now, a politician generally does things to further their political career. They don'…
Let representatives do everything they normally do but vote. A jury selected from voters in proportion to representatives is convened. The bill sponsors and opponents make their case to the jury. The jury votes.
It might be an unmitigated disaster. But, it would be interesting.