The Worlds of If

The Worlds of If is a science fiction short story by Stanley G. Weinbaum, written in the early 20th century. It explores themes of time travel and alternate realities through the protagonist, Dixon Wells, who uses a device called the 'subjunctivisor' to examine the consequences of his choices after missing a disastrous flight. The narrative delves into missed opportunities and the emotional weight of decisions, particularly as Wells reflects on his relationship with fellow passenger Joanna Caldwell, who survives the crash but marries another man. This story is notable for its innovative speculative concepts and exploration of 'what could have been.'