Ferrett Steinmetz His book The Uploaded deals with the consequences of a world where the dying are granted digital immortality in a fantasy filled utopian adventure, but they still get to vote. The real world is falling apart, few people care about their bodily existence, looking for any excuse to die, and the uploaded have all the political power.
That brings to mind a short story where only those under a certain age were allowed to vote or hold political offices or command position, while the clinically immortal elders were still allowed to have advisor and observer roles. It might have been the one with the baby-eaters, but I can't recall now. It also brings to mind the Futurama where Prof. Farnsworth ages out and is forced to move to the retirement planet.
Even our ancestors feared rule by the dead, which is where the rule against perpetuities comes from.
