Konstantin Tsiolkovsky arrived in Moscow in the early 1870s as a partly deaf teenager with no money and no access to formal education, and taught himself in the public library over roughly three years, guided in his reading by the librarian who noticed him. Tsiolkovsky went on to derive the rocket equation and to become the theoretical ancestor of the Soviet space programme, and he described Fyodorov's influence in strong terms. The line from Fyodorov's resurrection scheme through Tsiolkovsky to Korolev and Gagarin is real but should not be overstated — Tsiolkovsky's own cosmic philosophy was panpsychist and quite unlike Fyodorov's, and Soviet rocketry had many other fathers. What is true and strange enough on its own is that the man who taught the young Tsiolkovsky in the reading room believed the point of leaving Earth was to make room for the resurrected dead.