I agree it will probably not change voter epistemic behavior. The thought was that it would change the epistemic behavior of the parties catering to voters and the representatives acting on behalf of the voters, since the voting rule will select for parties and representatives which are less short-termist. This of course can’t be guaranteed—if parties are not motivationally longtermist but are merely trying to appease voters to hold power, for example, it won’t change their epistemic incentives very much unless competing actors (parties, media) can demonstrate to young people that their plans are bad. But even in this case this is plausible.
I agree it will probably not change voter epistemic behavior. The thought was that it would change the epistemic behavior of the parties catering to voters and the representatives acting on behalf of the voters, since the voting rule will select for parties and representatives which are less short-termist. This of course can’t be guaranteed—if parties are not motivationally longtermist but are merely trying to appease voters to hold power, for example, it won’t change their epistemic incentives very much unless competing actors (parties, media) can demonstrate to young people that their plans are bad. But even in this case this is plausible.