Hidden underneath the quest for immortality is the eternal quest of freedom from all known and unknown bounds. Unfortunately enough, this quest, when expressed from the confines of the apparatus called "mind" shows up as ego which is limiting, self serving and divisive. To experience the real singularity and immortality one needs an instrument which at its very core is limitless and that my friend is "consciousness". The reason current scientists have not been able to understand the limitless and eternal nature of consciousness is their fundamental assumption which is "matter gives rise to consciousness". Unless this assumption is turned around to "consciousness gives rise to matter" until then this quest for immortality will remain just that, a quest and never a realized goal.
At an individual level, we don't have to wait for the Ray's or Singularity of the world, this quest can be completed by each and everyone of us, by focusing our attention within. Attention is the expression of our consciousness in our physical being, and by focusing it within we can break free from the limitations of our 5 senses and the endless maze of thoughts. It is at point of liberation we will realize that we are all immortal beings who where focused in the limited dimensions created by the illusory mind and are all interconnected by the inherent Singularity of cosmic/unity consciousness.
Meditation or focusing within is the first step towards a successful quest of Singularity and Immortality.