Flexible suffrage

“No Bengt, the Sverigedemokraterna are for nucular power, not against it!”

It’s election time in Sweden and the usual thought arises – how fair is it that every uninformed Joe has the same opportunity to influence the outcome as a university professor of political science?
“Well, the system isn’t perfect, but it’s the best we can do,” is the common explanation.
Actually, no. We can do better. Or at least imagine better. How about, for example, a system where political knowledge translates into more votes? Sort of like högskoleprovet, the national Swedish proficiency test that kids take to try to win entry into the world of higher education. A similar test of political maturity would qualify you for a varying number of extra votes up to, say, 16. If you couldn’t be bothered to even take the test, you would still get your usual single vote.
Some philosophers call this “epistocracy”, or “the rule of the wise”. It’s super-controversial and likely impossible to implement, but I for one would love to take it out for a spin. It’s not as if the current system is perfect either, and how bad could it be if we let the informed and skilled have more of say?