A 1913 drawing ‘People of the 21st Century, ” where the humanity of the future is presented with humor, can be Sergey’s response to the futuristic novels of Albert Robida, which were in the family library. In 1883, the French writer Albert Robida wrote the book ‘The Twentieth Century, ” ijn which the action takes place in the 1950s, and he himself drew many illustrations for this work, depicting people and machines of the future in detail.