I agree with Elon Musk that immortality is actually not great, and would instead lead to a static dystopia. New generations need a chance to put their own stamp on the world.
In addition, term lengths could be placed on more than government roles to prevent excessive solidification of rules and procedures.
Actually thinking about this more. Collaboration might currently be crippled because of age and death. When you know have a few more years to live, you just want to enjoy what you’ve had. When you have another 1000+ you can take a few to invest into “getting caught up to the times”.