Can your breathing and heartbeat give a clue as to which color and text font you would prefer? You would be surprised as to how far biometrics can take you!
Immortality will be handed on the gilded plate to those who will be able to afford it. It will not, however, mean it will be limited only to the top 1 %. Rather Immortality will belong to smart and inquisitive minds, who really, really want it and who are ready to work hard to crack the code of life with open source software.