How many people have real indepth knowledge about genetics and stem cells, evolution, global warming, foreign policy, finance etc. etc.
none. even the representant. So how about a mixed system?
instead of represant, who get a degree OR sussesfully pass a governative test, can propose and vote law, on the argument of test.
Obviusly, all the normal votation system remain alive, the represant will propose law that will be voted and choose with of the user-proposed law put on vote. But the vote is not done by a resticted rapresentat, but a large part of (istruited) population.
because someone can bias the test to get the vote-abilitation, we can say if you get a degree you automatically can vote on some argument based on your studies (it is hard to bias a gevernative test, what about bias ALL the univeristies test?).
Also some law will be free-for-all to vote, like big propose as obamacare, or when chancing some part of the constitution.
We can use internet for specialistic law votation, or as pre-votation before a real votation (if it pass). Also, people that has degree but are not involved in politics will just not activate/use their "account". You may say some people will "sell" their account. This is wrong, but happens in real life here in italy(but i think it is a common problem), and it is a difficult thing to keep on tolerable level.