Czech sci-fi Armabetton
When you say concrete, it sounds safe and solid. Even a really large amount of concrete doesn't scare a person. Millions of tonnes of concrete in space near our planet won't deprive you of sleep either. But what if that huge mass starts moving towards Earth? The whole of humanity is threatened with extinction. The destinies of many people are changing. True characters are revealed. Envy, greed, laziness, courage, cleverness and other human qualities are manifested in all their nakedness. Someone is fighting to save, someone is fighting for their profit. What about the gigcomputer? Will he find a solution?