Once upon a time, there was a little boy, and he loved stories about stars, planets, comets, and space. And most of all, he liked to hear about collapsed stars. It seemed to him that these were some magical transitions to other worlds. As he got older, he learned that collapsars are such dense and massive astronomical objects. The gravitational attraction of which is so great that even objects moving at the speed of light, including light itself, cannot leave it. However, he was not upset but rather admired our world's fantastic complexity and versatility as an incredible creation, unattainable for understanding and even representation by human consciousness.