Solitary Longevity-Immortality Theory

If one could be provided and sustained completely, raised and educated by self maintaining computer machines without ever having been exposed or aware of anybody and live a life of complete solitary, I believe that would increase the individual's longevity even to the extent of immortality possibly on the premise that we all do die eventually due to life's ever ongoing tragedies. Misery sucks the life out of you eventually destroying your health gradually, but if one has never experienced tragedy or the strong hold of love's dependency, there'd be no wear and tear on the individual's mind and body, thus increasing the individual's life expectancy, possibly even to the extent of immortality. In any event, that's my unprofessional theory, although I'm sure most will see it as delusional fantasy.