Mass representative democracy https://www.interfluidity.com/v2/9069.html
Have lots of representatives (one per thousand people or so). Have a hierarchical system for small ad-hoc committees to consider issues as they come up, which percolate up through the hierarchy competing with other proposals so the one with biggest enthusiasm wins. Use the internet.
Interesting mention of “rational ignorance”, the idea that the average citizen has limited information about any given issue but is capable of making rational decision-making.