Do you think, that we are not immortal yet, because we don't develope immortality technologies to the end, and instead we constantly change one non-developed technology with another?
For example, from ancient times the people have believed, that all of the diseases can be healed with medicines from the nature. If this thesis has been developing firmly, without diviations, until today we should have a list of all existing plants and animals, all of their bioactive molecules, and a complete database of recepies for absolutely all diseases and aging changes, that would be searchable fast and easy. Instead, today we don't know the bioactive molecules in the majority of the plants on our planet.
Another example, if the mumification practice in ancient Egypth has been developed further through the years, we could have a reversible human mumification now, several thousand years later. This reversible mumification would be a far more advanced technology than the cryonics today, because it would not require liquid nitrogen supply, and would require only a heremtically sealed container for the mummy.
Today the development ofthe modern medicine is the most reliable solution of the treatable diseases. And instead of trying to develop it further, we try today searching of alternative scientific methodes for being immortal.
Do you think, that there is a logic in all of that? Or we should select only one path, take it, concentrate all of the human effort on it, and simply walk it to the end in order to become really immortal?