It might even be possible now to combine nuanced perspectives/responses to proposed policies from millions of people together!? I think it's not that unreasonable to suggest that kind of thing nowadays, I think there's precedent for it too even though stuff like how-wikipedia-works isn't really ideal, (even though it's somewhat an example of the main idea!).
This way, the public servants (including politicians) can mainly just take care of making sure the ideas that the people vote-for get implemented! (like all the lower tiers of government currently do - just extend it to the top level too!) I don't think we should give individuals that power any more!
What might make such a system work in practice is to only let a small randomly selected group of people vote for each issue. You still get a similar representation as a full vote, but with each person having much fewer votes to attend to it isn't overwhelming.