Science fiction is a genre with which we have repeatedly seen how strong human thought is and how the technologies of the future become our present. In 2022, Liters and ZASLON JSC held a literary competition, in which the authors wondered how ordinary engineers, due to the technologies they developed, could change their lives overnight, how original ideas come to them and how they develop their creations. The best stories were chosen by Sergei Lukyanenko, Vadim Panov, Andrey Vasiliev and Max Glebov, modern popular science fiction writers. In this collection, the winners' stories are about the invisible scientific and technological alternatives that exist with us every day. Bonus - the story of the jury member, Max Glebov.