Aside from the biological and technological innovations that will allow for potential immortality in the first place, there are the practical problems involving always being in a position to afford to keep going along with good care -- in perpetuity.
A new article at the Institute For Ethics & Emerging Technologies think tank describes a way forward:
The article is titled:
A Way to Pay for Global Citizen’s Income: Project Update and Report
The article can be found at this link:
http://ieet.org/inde.../morris20160229