I don’t remember what it’s called, but I like the idea of a system of delegating your vote to experts on a per-issue basis.
That way, you can find someone who shares your views with respect to a specific matter, and so will vote on your behalf on that specific matter (e.g. computer security), but won’t have any power to vote on your behalf when it comes to something he’s not an expert in (e.g. balancing the budget).
