From
https://en.m.wikipedia.org/wiki/Nikolai_Fyodorovich_Fyodorov
“Immortality for allEdit
Achieving immortality and resurrection of all people who ever lived are two inseparable goals, according to Fedorov. Immortality is impossible, both ethically and physically, without resurrection. We can’t allow our ancestors, who gave us life and culture, to remain buried, or our relatives and friends to die. Achieving immortality for individuals alive today and future generations is only a partial victory over death – only the first stage. The complete victory will be achieved only when everyone is resurrected and transformed to enjoy immortal life.”