The Sparrow rule is an internal guideline at DeepMind that encourages researchers to approach complex problems with creativity and openness. Inspired by the adaptability and ingenuity of sparrows in nature, the Sparrow rule emphasizes the exploration of unconventional ideas and the pursuit of uncharted territories in AI research. It encourages researchers to challenge established norms and think outside the box, fostering a culture of innovation and pushing the boundaries of what is possible in the field of artificial intelligence.