Ivan Ефремова can be named the most successful prophet from soviet fantasies. He predicted opening of deposit of diamonds in Yakutia and mercury ores on South Altai, described behavior of liquid crystals and three-dimensional television with a parabolic concave screen. In his works a suit (экзоскелет), e-book and rejuvenation of skin, appeared by means of laser and radio wave therapy. Describing the ideal future, Ivan Ефремов predicted a present present, and, maybe, exactly this his work attracts a modern reader.