re: Former Google Engineer: Humans will achieve immortality in eight years

There are five technologies which will ultimately lead to radical life extension during the course of this century and one leads directly to digital immortality, these five technologies are advanced Biotechnology, Nanotechnology, Advanced Robotics, Genetics, and mind uploading/whole brain emulation through ML/AI techniques. Ultimately, if your memories are uploaded to a non biological brain this will be the path which leads to digital immortality.

A technique that could be used is the combination of robust artificial intelligence and nanotechnology combined with whole brain emulation will enble us to achieve whole brain emulation, uploaded to a digital medium, and replaced with non-biological components until it reaches a stage where the non-biological components can model the biological part through machine learning, ie neural networks, so accurately the original brains loss would be irrelevant from a functional perspective. R&D departments at many FAANG’s are researching this presently.

Once this technology is developed multiple backup copies of the brain could be constantly backed up just as we do with a computer to a cloud network (AWS, Azure, GC), meaning; if one copy fails the others would continue at which point, digital immortality could theoretically be achieved.